UniFi MASSIVELY Scale up their NAS Portfolio with the UNAS Pro 8, UNAS Pro 4, UNAS 4 and UNAS 2

Note, the UNAS Pro 2 is NOW LIVE on the UniFi Store . The UNAS 4, UNAS Pro 4 and UNAS Pro 8 are now in the site, but are not available till October.

Ubiquiti is preparing to significantly broaden its NAS product line in late 2025 with the introduction of four new systems under the UNAS branding. The new lineup follows the launch of the original UNAS Pro in 2024, which gained attention as a low-cost, seven-bay rackmount appliance that introduced UniFi into the NAS sector. With the release of the UNAS 2, UNAS 4, UNAS Pro 4, and UNAS Pro 8, the company is moving into what it describes as its “phase two” of NAS development, aiming to cover both desktop and rackmount form factors while integrating closely with the wider UniFi ecosystem. This expansion arrives at a time when established NAS vendors are tightening drive compatibility and raising prices, leaving a gap for alternatives that emphasise affordability, simplified deployment, and ecosystem consistency.

The UNAS Pro 8 NAS

4-Core ARM, 16GB RAM, 3x 10GbE, 8x SATA Bays, 2x M.2 Bays (trays required), Redundant PSU (2nd Sold Seperately) $799 – HERE

The UNAS Pro 8 will serve as the top-end model of the range, positioned in a 2U rackmount chassis and built to deliver higher capacity and redundancy. It features eight front-facing 2.5″/3.5″ SATA bays alongside two rear-mounted M.2 NVMe slots, accessible through modular trays.

The Pro 8 is powered by a quad-core ARM Cortex-A57 processor running at 1.7 GHz and paired with 16 GB of LPDDR4 memory. Unlike many entry-level ARM systems, the Pro 8 includes three 10-gigabit network interfaces: two SFP+ and one RJ45 supporting multi-gig speeds down to 100 MbE. Redundant hot-swappable 550W PSUs are supported, though only one is included by default, with seamless failover tested successfully under load.

The system uses SGCC steel for the enclosure, weighs 11.5 kg, and includes rack rails in the box, a detail rarely seen in turnkey solutions. Performance tests have demonstrated sequential reads close to 850 MB/s on HDDs in RAID 5, with expectations of saturating a 10GbE link when using SSDs or RAID 0.

The UNAS 2 NAS

4-Core ARM, 4GB RAM, 1X 2.5GbE PoE+++, 2x SATA Bays, Power Over Ethernet delivery (PoE+++ Adapter Included) $199 – HERE

At the opposite end of the spectrum is the UNAS 2, UniFi’s smallest NAS to date. This desktop unit measures just 13.5 x 12.9 x 22.37 cm and weighs 1.3 kg, with a polycarbonate chassis designed to keep cost and weight down.

The device supports two 3.5″ SATA drives housed in a shared tray, a design that requires both drives to be removed together and does not permit hot-swapping. This approach raises concerns about handling healthy drives during replacement but reduces the mechanical complexity of the system.

The UNAS 2 runs on a quad-core ARM Cortex-A55 at 1.7 GHz with 4 GB of LPDDR4 memory. Networking is provided by a single 2.5 GbE RJ45 port, which also delivers PoE++ power, with a maximum system budget of 60W (52W for drives). A 60W PoE++ injector is included for users without a suitable switch. A 1.47-inch colour LCM display on the front provides status updates, though it is non-interactive. A USB-C port rated at 5 Gbps adds external storage capability, addressing an omission noted in the original UNAS Pro, but it does not support UPS integration or networking adapters.

The UNAS Pro 4 NAS

4-Core ARM, 16GB RAM, 10GbE, 4x SATA Bays, 2x M.2 Bays (trays required), Redundant PSU (2nd Sold Seperately) $499 – HERE

Between these two extremes sits the UNAS Pro 4, a 1U rackmount unit designed for users who want the resilience of redundant PSUs and NVMe support without committing to an eight-bay chassis.

It includes four SATA bays and two M.2 NVMe slots, sharing the same ARM Cortex-A57 CPU and 16 GB of memory as the Pro 8. Like its larger counterpart, it is built for rack environments where redundancy and compact form factor are key priorities.

While exact dimensions and weight have not yet been confirmed (with the UNAS 2 and UNAS Pro 8 being the main focus of this new launch), the design is expected to follow Ubiquiti’s established rackmount conventions. Its specification profile makes it an option for smaller businesses or branch offices that need rack integration but do not require the capacity of an eight-bay system.

The UNAS 4 NAS

4-Core ARM, 4GB RAM, 1X 2.5GbE PoE+++ (TBC), 4x SATA Bays, 2x M.2 Bays (trays required), Power Over Ethernet delivery (PoE+++ Adapter Included) $379 – HERE

The UNAS 4, meanwhile, extends the desktop line and mirrors the design philosophy of the UNAS 2 but doubles the bay count.

It provides four 3.5″ SATA bays along with two M.2 slots, making it the only desktop model in the range to support NVMe caching or tiered storage.

It retains the same ARM Cortex-A55 CPU and 4 GB of fixed memory as the UNAS 2, positioning it as a modest but slightly more versatile desktop option.

Like the smaller model, it uses PoE+++ for power delivery and 2.5 GbE for connectivity, though it remains unconfirmed whether it will also include a secondary network interface for failover or link aggregation. As with other desktop models, the chassis is constructed from polycarbonate, with compact dimensions intended for office or home use rather than data centre deployment.

UniFi Drive 3.3 Update?

Alongside the hardware announcements, UniFi will also release UniFi Drive 3.3, a major update to its NAS management software.

This version introduces expanded RAID configuration options, broader support for third-party cloud platforms, enhanced fan control, and improved analytical tools for monitoring system health and performance.

Snapshots and backups remain central features, with cloud and LAN targets supported, while the update also improves scheduling flexibility and introduces additional reporting features.

Although iSCSI remains absent, UniFi Drive continues to mature from the limited platform released with the first UNAS Pro, and the 3.3 update is expected to improve usability across the entire new range.

The introduction of these four models demonstrates Ubiquiti’s intent to build a full family of NAS solutions rather than rely on a single experimental release. By offering both rackmount and desktop systems at varying capacities, the company is positioning itself to compete more directly with established NAS vendors, albeit with a more streamlined and ecosystem-focused approach. The UNAS 2 and UNAS 4 are targeted primarily at existing UniFi users seeking simple storage that integrates seamlessly with PoE switches, while the Pro 4 and Pro 8 are built to appeal to businesses looking for redundancy, higher bay counts, and greater throughput. The use of ARM processors across the line reflects UniFi’s efficiency-first design, even though it places limits on heavy workloads such as virtualisation or multimedia transcoding.

Detailed performance reviews and comparisons of the new models are expected in the weeks ahead, assessing how each device performs within its target segment. Particular attention will focus on how the Pro units handle sustained 10GbE workloads with HDD and SSD configurations, how the PoE-driven desktop models cope with thermal and power constraints, and how UniFi Drive 3.3 stacks up against more mature operating systems. With Ubiquiti steadily fleshing out its NAS portfolio one year on from the first UNAS Pro, the company’s ability to deliver consistent updates and address early hardware and software limitations will determine whether it can establish a lasting position in the NAS market.

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Après l’UNAS Pro lancé en octobre 2024, UniFi vient d’annoncer 4 nouveaux modèles de NAS : UNAS 2, UNAS 4, UNAS 4 Pro et UNAS 8 Pro. Que vous soyez un particulier ou une PME, chaque modèle a été conçu pour répondre à des usages précis, « sans compromis sur la simplicité ni sur la performance » selon le fabricant.

UNAS 2 : la simplicité avant tout

Premier modèle de la gamme, l’UNAS 2 est un NAS 2 baies pensé pour ceux qui recherchent un appareil compact, facile à installer et performant. Son design épuré (qui rappellera les produits Apple) et son installation via un seul câble PoE++ en font une solution idéale pour un bureau ou un usage domestique.

Ce NAS est construit autour d’un processeur quad core ARM Cortex A55 cadencé à 1.7 GHz et épaulé par 4 Go de mémoire vive.

Caractéristiques principales :

• 2 baies pour disques durs ;
• processeur Quand Core ARM Cortex-A55 cadencé à 1,7 GHz ;
• 4 Go de mémoire vive ;
• 1 port réseau 2,5 Gb/s ;
• connectique USB-C en façade ;
• écran tactile intégré ;
• disponible en deux coloris.

L’accès aux disques se fait par le dessous du boîtier, tandis que l’alimentation et le réseau passent par un unique câble RJ45. Un injecteur PoE 60 W est fourni. UniFi propose également des disques durs maison (1, 8, 16 et 24 To).

Son prix : 214,80€ TTC.

UNAS 4 : plus de stockage et toujours aussi simple

L’UNAS 4 reprend les atouts du UNAS 2 tout en doublant les possibilités de stockage. Il propose 4 baies pour disques durs et 2 emplacements SSD NVMe pour le cache.

Le modèle n’est pas encore disponible mais son lancement est prévu avant la fin de l’année 2025. Son prix : 408€ TTC.

UNAS Pro 4 et Pro 8 : la gamme professionnelle

La série Pro s’adresse clairement aux entreprises et aux infrastructures IT. Ces modèles rackables misent « sur la puissance, la résilience et la flexibilité » selon le fabricant.

Points clés :

• 4 baies (UNAS 4 Pro) ou 8 baies (UNAS 8 Pro) ;
• processeur Quad Core ARM Cortex-A57 à 2 GHz ;
• 8 Go de RAM (UNAS 4 Pro)  ou 16 Go (UNAS 8 Pro) ;
• 2 emplacements SSD NVMe pour le cache ;
• 2 ports 10 Gb/s SFP+ et 1 port 10 Gb/s RJ45 avec MC-LAG ;
• alimentation redondante (UNAS 8 Pro).

L’UNAS Pro 8 est conçu pour les charges de travail intensives, tandis que l’UNAS Pro 4 reprend la même puissance dans un format rackmount 1U compact.

Prix et disponibilité :

• UNAS Pro 8 : sortie prévue en octobre 2025, 862,80€ TTC ;
• UNAS Pro 4 : attendu fin 2025, 538,80€ TTC.

UniFi Drive : le logiciel qui unifie l’expérience

Tous les modèles UNAS reposent sur UniFi Drive, qui évolue avec les besoins utilisateurs. Ses intégrations cloud (AWS S3, Backblaze B2, Wasabi), son support Active Directory et ses modes de refroidissement personnalisables en font un atout majeur.

En syntèse

Avec cette nouvelle gamme, UniFi propose une offre de stockage claire et évolutive, couvrant les besoins des particuliers comme ceux des entreprises :

• UNAS 2 : simplicité et compacité pour un usage domestique ;
• UNAS 4 : plus de capacité sans complexité supplémentaire ;
• UNAS Pro 4 & Pro 8 : puissance et fiabilité pour les pros.

Innovation pratique, gestion simplifiée et absence de frais récurrents : UniFi se positionne comme un acteur solide sur un marché du NAS en pleine mutation. Attention, les NAS UniFi sont destinés au stockage en réseau uniquement.

The UniFi UNAS Pro 8 NAS Review – The Difficult 2nd Album…

Note, the UNAS Pro 2 is NOW LIVE on the UniFi Store . The UNAS 4, UNAS Pro 4 and UNAS Pro 8 are now in the site, but are not available till October.

The UniFi UNAS Pro 8 is the latest rackmount NAS in Ubiquiti’s gradually expanding storage lineup and serves as a direct successor to the UNAS Pro released in late 2024. That earlier seven-bay system introduced UniFi’s first attempt at a prosumer-class NAS with 10GbE connectivity and integration into the UniFi ecosystem, but it was limited in scope by its unusual drive count, absence of fan control, and lack of redundant power options. The Pro 8 addresses many of those concerns by standardising the layout to a full eight 3.5-inch bays, adding dedicated M.2 NVMe slots, and adopting a 2U rackmount form factor with hot-swappable dual power supplies. It also includes a set of rails in the box, something not always seen in turnkey solutions of this scale.

From a technical perspective, the UNAS Pro 8 remains anchored to an ARM-based architecture, employing a quad-core Cortex-A57 processor at 1.7 GHz paired with 16 GB of non-upgradeable memory. This positions it differently from x86 alternatives from Synology or QNAP, limiting its scope for high-end virtualisation or transcoding tasks but keeping overall efficiency high. Network expansion is one of its more striking features, with three 10GbE connections — two SFP+ and one copper port — included by default, offering redundancy and multi-channel potential well beyond the capacity of eight SATA drives. Taken together with the dedicated M.2 NVMe caching support and optional redundant PSUs, the Pro 8 represents an incremental but deliberate step forward in UniFi’s second phase of NAS development.

UniFi UNAS Pro 8 Review – Quick Conclusion

The UniFi UNAS Pro 8 is a clear refinement over the first-generation UNAS Pro, standardising the design to eight bays, introducing hot-swappable dual PSU support, and improving cooling and fan control, while also including rack rails for easier deployment. It delivers solid storage functionality with RAID up to level 6, clustered pools, snapshots, encryption, and read/write caching via NVMe modules, though the caching remains limited to automated policies and the required trays are sold separately. Networking is unusually strong for an eight-bay ARM system, with three 10GbE interfaces providing flexibility for aggregation or failover, even if the storage media is unlikely to saturate that bandwidth. Performance testing showed read speeds close to 850 MB/s in RAID 5 with HDDs, with lower write speeds reflecting the ARM Cortex-A57 processor’s constraints, and SSD arrays would likely achieve closer to 10GbE saturation. The operating system has matured but remains more streamlined than established platforms, with no iSCSI, limited protocol support, and basic backup tools, making it more suitable for straightforward file storage than advanced workloads. Ultimately, the Pro 8 fits best for users already invested in UniFi infrastructure or those seeking a rackmount NAS with strong connectivity and efficiency, but it is not yet a direct alternative to feature-rich solutions from long-standing NAS vendors. That said, if you want an incredible value and solid ‘storage-focused’ rackmount NAS solution – this might well be one of the best examples in 2025!

BUILD QUALITY - 9/10

HARDWARE - 8/10

PERFORMANCE - 7/10

PRICE - 9/10

VALUE - 10/10

8.6

PROS

Multiple RAID Configurations supported, but also clustered RAID\'s and support of M.2 NVMes for Caching
M.2 Injection is unique, well thought out and easy to utilise for caching
THREE 10Gb/s PORTS (technically)! Kind of insane actually, for a 8x SATA drive machine
Dual PSU and Failover hugely welcome, after it\'s omission on the UNAS Pro 2024
16GB RAM out the box is a significant upgrade over the UNAS Pro from 2024
Benefits from almost a year of development of the UNAS Pro by UniFi, resulting in a much more complete solution in both hardware and software
Rackmount rails are included in the UNAS Pro 8 retail box, and are of a high quality
Exceptionally appealing price point
Supports complete network/local access if preferred, as well as full remote connectivity with the UI.com account and site manager services
Wide Hard Drives and SATA SSD Support (UniFi branded drives and those from 3rd parties such as Seagate Ironwolf, WD Red and Toshiba N300)
Ditto for the m.2 NVMe support, though you will need to m.2 adapter trays
Comprehensive network storage software in UniFi NAS OS and Drive.
Latest OS updates have included fan control, flexible RAID configurations, encrypted drive creation, customizable snapshots, more backup client choices/targets
\'Single Pane of Glass\' management and monitoring screen is very well presented!
One of the fastest to deploy turnkey NAS solutions I have ever personally used!

CONS

Lack of USB connectivity for convenient plug and share storage drives, network upgrades, 3rd party UPS support and more
Very modest base hardware, but understandable relative to the price
HDD injection is very unique, but prevents hot swapping
Still a lack of client applications native to the NAS services for Windows, Mac, Andoid and Linux
Shame about the LCD/LCM control panel being absent
M.2 NVMes are not usable for storage pools, just read/write caching - which is a shame, given the large network connectivity available here

You can buy the UniFi UNAS Pro 8 NAS via the link below – doing so will result in a small commission coming to me and Eddie at NASCompares, and allows us to keep doing what we do! 

UniFi UNAS Pro 8 Review – Design & Storage

The UNAS Pro 8 adopts a 2U rackmount form factor, measuring 442.4 x 480 x 87.4 mm and weighing 11.5 kg. The enclosure is constructed from SGCC steel, giving it a sturdy industrial build aimed at rack deployments rather than desktop placement. The system ships with rack rails included, which is uncommon among turnkey NAS appliances in this class, reducing the need for additional accessories when integrating it into an existing rack setup. The front panel presents a uniform layout of eight drive bays, standardising the design over the previous model’s unconventional seven-bay configuration and providing a more predictable arrangement for enterprise or prosumer storage planning.

Each of the eight bays supports both 3.5-inch and 2.5-inch HDDs or SSDs, with tool-less trays supplied for ease of installation. Drives slot in securely with a lockable motion, though there is no key-based locking mechanism on the trays themselves, limiting physical access protection. Installation is simple, with trays accommodating both large-capacity HDDs and smaller SSDs through included screws for 2.5-inch drives. While the bays can be partially populated for smaller-scale deployments, the absence of an expansion chassis option means users must fully plan around the eight-bay limit from the outset.

Cooling has been reworked compared with the earlier UNAS Pro. The system now features multiple fans with improved airflow across the drive bays and system board, supplemented by passive ventilation at the front and central areas of the chassis. Fan control has been integrated into the management software, allowing administrators to adjust fan speeds dynamically, a feature missing from the 2024 model. This provides more direct management of system acoustics and thermal balance, which is important given that high-density SATA arrays can run warm under sustained load.

In addition to the primary SATA storage, the rear of the chassis houses two M.2 NVMe slots. These are integrated into removable tray modules with thermal pads and heatsinks designed to dissipate heat from 2280 or 22110 length SSDs. However, the trays are not included by default, requiring a separate purchase if users wish to install their own NVMe drives.

The implementation is mechanically well thought out, but functionally limited: the NVMe drives can currently only be used for read and write caching.

They cannot be assigned to storage pools or volumes, restricting their utility for users seeking to leverage them as a high-speed tier alongside the eight SATA bays.

From a capacity perspective, the eight 3.5-inch bays allow the use of large modern drives, with confirmed compatibility during testing with 30 TB Seagate IronWolf units as well as UniFi-branded re-labelled Western Digital drives. The total maximum capacity therefore depends on the drives chosen, but the system power budget allocates up to 175W for drives, sufficient to support a full complement of high-capacity HDDs.

In practice, UniFi recommends their own labelled drives but does not enforce vendor lock-in, leaving flexibility for users to select from available NAS-grade HDDs and SSDs on the market. This more open stance is in contrast to the drive validation policies adopted by some established NAS vendors, and it provides an important degree of freedom in deployment.

UniFi UNAS Pro 8 Review – Internal Hardware

At the core of the UNAS Pro 8 is an ARM-based processor, specifically a quad-core Cortex-A57 running at 1.7 GHz. This architecture is consistent with UniFi’s approach in the earlier UNAS Pro, prioritising efficiency and lower power draw over raw computational performance. The choice of an ARM SoC means the device is well-suited for file storage, backups, and network-attached services, but it does not provide the same level of support for virtualisation, multimedia transcoding, or container workloads that x86-based systems can deliver. For users considering this system, the hardware direction underlines its positioning as a straightforward storage platform rather than an all-purpose server.

Memory is supplied in the form of 16 GB of LPDDR4, which is soldered to the board and cannot be upgraded. This is a relatively high baseline for an ARM-powered NAS, offering enough headroom for multi-user file access, caching operations, and handling larger RAID arrays without memory saturation. The allocation proved sufficient during array synchronisation tests, though high memory utilisation was observed when building an eight-drive RAID. This suggests the hardware has been provisioned carefully to meet expected workloads, albeit without scope for user expansion if requirements increase later.

The operating system is stored internally on dedicated flash storage, reported within the software as 25.2 GB, likely provisioned as a 32 GB module with some over-provisioning. This design ensures that installed drives remain fully dedicated to storage and that the system can boot independently of the data array. Storage management supports multiple RAID levels up to RAID 6, as well as clustered RAID groupings, providing some flexibility for mixed drive sizes. Combined with hot-swap support and optional failover protection through dual PSUs, the hardware configuration strikes a balance between basic efficiency and the inclusion of some enterprise features.

UniFi UNAS Pro 8 Review – Connectivity & Throughput

The UNAS Pro 8 is equipped with three 10-gigabit network interfaces, consisting of two SFP+ 10G ports and one RJ45 10GbE port with multi-gigabit fallback to 5G, 2.5G, 1G, and 100 MbE. This level of connectivity is notable for a system limited to eight SATA bays, as even high-performance HDDs or SSDs in aggregate are unlikely to saturate more than a single 10GbE link under typical workloads.

While the inclusion of three ports may appear excessive, the arrangement allows for link aggregation, redundancy, and separation of traffic across multiple networks. In practice, this provides administrators flexibility in how the NAS integrates with existing switching hardware, though the real-world performance ceiling remains constrained by the storage media.

Power connectivity is handled through two hot-swappable AC/DC 550W power modules, though only one is included in the base configuration. Installing a second unit enables redundancy, ensuring uninterrupted operation in the event of PSU failure. Testing confirmed seamless failover when one module was removed during sustained read/write operations, with no observable disruption in data availability. However, the absence of USB or UPS integration ports limits external redundancy options, leaving users reliant solely on the dual-PSU configuration for power protection.

In terms of general I/O, the device is closed in design, with no USB ports, HDMI output, or PCIe expansion available. This reflects UniFi’s approach of positioning the system as a dedicated, self-contained appliance managed exclusively via network interfaces and the UniFi OS console. While this reduces versatility for use cases such as direct-attached backups or third-party hardware upgrades, it aligns with the brand’s ecosystem-driven philosophy.

Performance testing with eight 8TB drives in a RAID 5 configuration produced throughput in the region of 800–850 MB/s during sequential read operations. Write speeds were lower, reflecting both the RAID type and the limitations of the ARM Cortex-A57 processor, but still sufficient for multi-user file access and standard NAS workloads. Tests with larger 30TB Seagate IronWolf drives confirmed compatibility, though extended stress testing was not undertaken. With SATA SSDs or a RAID 0 array, the system would likely be capable of saturating a single 10GbE connection, though fully exploiting the three available ports remains unrealistic under the current hardware constraints.

The inclusion of two M.2 NVMe slots, limited to use as read/write cache, provides some performance enhancement. Caching can accelerate frequently accessed data reads or speed up ingest of new data before it is written to the HDD array. However, the caching mechanism is automated, with no user control over cache policies, and the NVMe drives cannot currently be used for storage pools. During operation, thermal imaging recorded SSD module temperatures in excess of 50°C, indicating adequate but stressed cooling under load. This reinforces the importance of active fan management, now included in UniFi’s updated software.

• Networking: 2 x 10G SFP+, 1 x 10GbE RJ45 (5G/2.5G/1G/100M supported)

• Power Supply: 2 x 550W hot-swappable AC/DC modules (1 included)

• Management: Ethernet and Bluetooth 4.1 setup/admin

• Other I/O: None (no USB, HDMI, or PCIe expansion)

• Drive Support: 8 x 2.5″/3.5″ SATA HDD/SSD, 2 x M.2 NVMe (cache only)

• Tested Performance: ~800–850 MB/s sequential reads (RAID 5, HDDs)

• Write Performance: Lower than reads, limited by ARM CPU overhead

• Cache Functionality: NVMe SSDs limited to automated read/write caching

UniFi UNAS Pro 8 Review – Software and Services

The UNAS Pro 8 runs on UniFi’s NAS management platform, designed to integrate with the broader UniFi ecosystem while remaining usable as a standalone system. Administration can be carried out through the UniFi OS console in a web browser or via the ui.com cloud portal, with optional remote access that can be enabled or disabled depending on security requirements.

The platform aims to provide a single interface for storage management, user access, and system monitoring. It is less feature-rich than mature alternatives such as Synology DSM or QNAP QTS, but it retains a streamlined design that prioritises ease of setup and centralised administration.

Storage management supports common RAID levels up to RAID 6, with the additional ability to cluster groups of drives into combined pools. Snapshots are available at the folder level, allowing users to roll back to earlier revisions of files. Encryption is supported, requiring a password to mount encrypted volumes after reboot, which ensures data protection in the event of device theft or unauthorised access.

NVMe SSDs can be assigned to caching, though as noted earlier, they cannot be added to storage pools. File access is available through SMB and NFS, but the range of supported protocols is narrower than on established NAS operating systems.

Backup functionality is split into two categories: system configuration backups and file-level backups. System configuration backups can be stored locally or uploaded to a ui.com account, allowing settings and structures to be restored to the same or another UniFi NAS device.

File-level backups extend to cloud services and other NAS units, with support for scheduled routines and basic rules such as overwrite or versioned backups. Cloud integration is functional but limited compared to established platforms, and external synchronisation features such as continuous sync or third-party plug-ins are not yet available.

User management is relatively straightforward, with the option to bind accounts to the wider UniFi ecosystem or create standalone local users. Access can be restricted to LAN-only connections, while two-factor authentication is available through UniFi’s identity and verification tools. At present, some advanced functions common to other platforms, such as iSCSI target creation or scheduled power management, remain absent.

The software continues to evolve, with updates adding features incrementally, but its current focus is on providing reliable core storage, backup, and access management rather than competing directly with the broad feature sets of long-established NAS vendors.

UniFi UNAS Pro 8 Review – Verdict and Conclusion

The UniFi UNAS Pro 8 represents a measured but important step forward compared with the earlier UNAS Pro model released in 2024. By moving to a uniform eight-bay arrangement, it avoids the odd seven-bay design that limited the practicality of the previous system and brings it in line with industry expectations for rackmount storage. The addition of dual hot-swappable power supply modules, though only one is supplied by default, introduces a level of redundancy that was absent in the earlier generation and proved reliable during testing with seamless failover. Improvements to cooling and fan control further distinguish it, with administrators now able to actively manage system noise and temperature rather than relying on fixed presets. UniFi has also bundled rack rails and a robust accessory kit, which simplifies installation and deployment. At the same time, the reliance on an ARM Cortex-A57 processor keeps the platform efficient but restricts its performance ceiling, limiting its suitability for high-throughput tasks such as large-scale virtualisation, multimedia transcoding, or environments where sustained multi-gigabyte per second throughput is essential.

On the software side, UniFi’s NAS operating system has matured since the first-generation release but still prioritises simplicity over feature breadth. The UNAS Pro 8 includes key storage capabilities such as RAID up to level 6, clustered pools, snapshots, encryption, and read/write caching via the rear-mounted NVMe modules. However, those same M.2 slots remain limited to caching only, and the trays required for installation must be purchased separately, which may be seen as an unnecessary barrier. Network protocol support is limited to common services such as SMB and NFS, with no iSCSI implementation, reducing its appeal for professional editing environments or enterprise applications that depend on block-level storage. Cloud and LAN backups are supported with basic scheduling and rules, but the absence of broader synchronisation features or third-party integration keeps it behind more mature platforms. The Pro 8 therefore delivers dependable core NAS functions but does not yet challenge the established ecosystems of Synology or QNAP. For organisations already invested in UniFi’s infrastructure or those requiring a straightforward rackmount storage system with multiple 10GbE connections, it offers a compelling option, but it remains best suited to use cases focused on file storage and backup rather than advanced workloads.

You can buy the UniFi UNAS Pro 8 NAS via the link below – doing so will result in a small commission coming to me and Eddie at NASCompares, and allows us to keep doing what we do! 

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Want to follow specific category? Also Read...UniFi Launch the New UNAS 2, UUniFi UNAS 2 ReviewUniFi Launch the New UNAS 2, UUniFi UNAS Pro 8 ReviewUniFi UNAS 2 ReviewGL.iNet Comet Pro Review - TheGL.iNet Comet Pro ReviewWeek 33 Tech Roundup – TerraGMKTec G9 NAS (New Improved CoSeagate 30TB Ironwolf Pro and Subscribe You can also follow specific search terms:

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The UniFi UNAS 2 NAS Review – Value vs Scale

Note, the UNAS Pro 2 is NOW LIVE on the UniFi Store . The UNAS 4, UNAS Pro 4 and UNAS Pro 8 are now in the site, but are not available till October / Q4 2025

The UniFi UNAS 2 is a compact, entry-level two-bay desktop NAS introduced as part of Ubiquiti’s second phase of NAS development, following the debut of the UNAS Pro in 2024. That earlier seven-bay rackmount system was notable for its low $499 price and integrated 10GbE connectivity, but it had an unconventional design, limited fan control, and no support for USB expansion. By contrast, the UNAS 2 shifts away from rackmount hardware and into the desktop market, adopting a much smaller form factor and prioritising simplicity over raw performance. Measuring 13.5 x 12.9 x 22.37 cm and weighing only 1.3 kg, it is one of the smallest systems in the UniFi NAS range and is constructed from polycarbonate rather than steel, reinforcing its role as an affordable, lightweight device.

The hardware is designed primarily for modest storage requirements, supporting two 3.5-inch hard drives with a maximum combined power budget of 52W and an overall consumption ceiling of 60W. The device operates on a single 2.5 GbE RJ45 interface, which also functions as a PoE++ input, removing the need for a conventional power supply unit but requiring either a compatible PoE++ switch or the included 60W injector. This approach marks a clear departure from the UNAS Pro, which included a standard power connector and optional redundancy through additional PSU modules. In practice, the reliance on a single port for both power and data streamlines installation within UniFi networks, but it also introduces a single point of failure and reduces flexibility compared with larger systems.

UniFi UNAS 2 Review – Quick Conclusion

The UniFi UNAS 2 is a compact, entry-level NAS that prioritises simplicity and integration within the UniFi ecosystem over flexibility or raw performance. Its use of PoE++ for both power and connectivity makes installation straightforward in environments with compatible UniFi switches, but it introduces reliance on a single port and limits deployment outside that infrastructure, even with the included injector in the retail kit. The system supports two 3.5-inch drives in a shared non–hot-swappable tray, with RAID 0, RAID 1, or single-disk setups available, but there is no option for expansion or NVMe caching. Hardware consists of a quad-core ARM Cortex-A55 processor with fixed 4 GB of LPDDR4 memory, which is efficient but imposes clear limits on throughput and application scope. Performance testing produced read speeds up to 260 MB/s and writes in the 160–180 MB/s range, sufficient for the 2.5 GbE interface but reflective of the modest hardware and thermal constraints, with CPU temperatures often approaching 80°C under load. Software provides a clean interface with snapshots, RAID tools, backups to other UniFi NAS or cloud services, and user management tied to UniFi identity, but features such as iSCSI, encryption, and granular backup rules are absent. As a result, the UNAS 2 is best suited as a secondary or edge storage device, particularly for UniFi users seeking easy integration, but it lacks the scalability and depth of established NAS platforms needed for primary or enterprise deployments.

BUILD QUALITY - 9/10

HARDWARE - 7/10

PERFORMANCE - 7/10

PRICE - 10/10

VALUE - 9/10

8.4

PROS

Benefits from almost a year of development of the UNAS Pro by UniFi, resulting in a much more complete solution in both hardware and software
Exceptionally appealing price point
Extremely low impact (power use, noise level, physical scale all great)
Introduction of USB C 5Gb/s Connectivity is very welcome
Supports complete network/local access if preferred, as well as full remote connectivity with the UI.com account and site manager services
Wide Hard Drives and SATA SSD Support (UniFi branded drives and those from 3rd parties such as Seagate Ironwolf, WD Red and Toshiba N300)
Comprehensive network storage software in UniFi NAS OS and Drive.
Latest OS updates have included fan control, flexible RAID configurations, encrypted drive creation, customizable snapshots, more backup client choices/targets
\'Single Pane of Glass\' management and monitoring screen is very well presented!
One of the fastest to deploy turnkey NAS solutions I have ever personally used!

CONS

Single network port, though not a dealbreaker (as this is still just 2x SATA throughput), is not great in terms of a network failover or in deployment of SATA SSDs
Choice of PoE deployment unusual and limits some deployments
USB C connectivity does not support network adapters, NAS expansions or 3rd party UPS devices
Very modest base hardware, but understandable relative to the price
HDD injection is very unique, but it prevents hot swapping
Still a lack of client applications native to the NAS services for Windows, Mac, Android and Linux

You can buy the UniFi UNAS 2 NAS via the link below – doing so will result in a small commission coming to me and Eddie at NASCompares, and allows us to keep doing what we do! 

UniFi UNAS 2 Review – Design

The UNAS 2 adopts a small desktop form factor, measuring 135 x 129 x 223.7 mm and weighing 1.3 kg. Its enclosure is constructed from polycarbonate, which makes it lighter and less industrial than the steel-based rackmount models in UniFi’s NAS range. The compact build is suited for environments where space is limited, and it operates within an ambient temperature range of -5 to 40°C and a humidity tolerance of 10–90% non-condensing. With only two drive bays, the UNAS 2 positions itself as an edge device for simple storage and backup, rather than a primary data management system.

Drive installation is handled through a single removable cage that holds both 3.5-inch drives. Each drive clips into place using a shared tray design, with both units inserted in opposite orientations to align with the SATA connectors. While this arrangement is functional, it has some limitations.

There is no support for hot swapping, meaning the system must be powered down before drives can be replaced. Additionally, the shared cage design requires both drives to be handled together, which increases the risk of disturbing a healthy drive when removing or replacing a failed one.

Cooling is managed by a small fan located at the rear, supported by passive ventilation channels at the base of the unit. Air is drawn in from underneath and expelled from the top section, ensuring airflow across the drives and the system board. Thermal tests recorded CPU temperatures in the range of 75–80°C during higher utilisation, with the chassis surface reaching around 39–50°C depending on workload.

The fan is adjustable via UniFi’s management interface, offering a choice between balanced operation and higher cooling at the expense of noise.

Noise levels ranged from 31–32 dBA in idle to 35–38 dBA under load, influenced heavily by the vibration of installed drives.

At the front of the unit, UniFi has integrated a 1.47-inch colour LCM display for system information. This provides basic details such as network status, storage health, and system alerts, but it is not touchscreen and cannot be used for configuration.

The lack of interactive control means that most management tasks still need to be handled through the UniFi OS console. LED indicators are also present for system status, and a physical locking mechanism is built into the drive cage, preventing accidental removal.

From a storage perspective, the UNAS 2 supports standard RAID configurations for two drives, namely RAID 0 and RAID 1, in addition to single-disk setups. Given the limitations of two-bay devices, RAID 1 is the most practical option, prioritising data protection over capacity.

The system officially supports large-capacity HDDs, with tests confirming compatibility up to 30 TB drives. However, there is no expansion capability through additional enclosures, and the single USB-C port on the front is limited to attaching external drives for storage or backups. This means users are confined to the internal two-bay maximum, making long-term planning important for deployment.

UniFi UNAS 2 Review – Internal Hardware

The UNAS 2 is built around a quad-core ARM Cortex-A55 processor clocked at 1.7 GHz. This CPU architecture is designed for efficiency rather than high computational output, which makes it suitable for low-power storage operations, but less capable for advanced workloads such as virtualisation, heavy encryption, or on-the-fly media transcoding.

During testing, CPU temperatures generally remained in the 75–80°C range under sustained use, dropping closer to 50–60°C when idle or under light activity. While these figures fall within operating limits, they reflect the modest cooling design of the enclosure and the limited thermal headroom of the ARM-based hardware.

The device includes 4 GB of LPDDR4 memory, which is soldered to the board and cannot be expanded. This fixed allocation is sufficient for handling RAID 1 synchronisation, snapshots, and standard multi-user file operations, but it sets a ceiling on the system’s multitasking capability.

Unlike larger UniFi NAS models that feature 16 GB of memory, the UNAS 2’s hardware is intended only for light to moderate workloads. Memory use during testing reached high utilisation during RAID synchronisation but did not exceed available capacity, suggesting that UniFi has provisioned enough for the intended use case, while keeping the system constrained to its role as an entry-level solution.

The operating system is stored internally and runs independently of the installed drives, leaving both bays available for data. This separation ensures that the system can still boot even if both drives are removed or replaced. Storage management is limited to the basic RAID levels supported by two-bay systems, and no M.2 NVMe slots are included for caching or tiered storage, a feature reserved for larger UniFi NAS models. As such, the internal hardware of the UNAS 2 reflects its role as a secondary or edge device, designed primarily for straightforward storage and backup within a UniFi-managed network.

UniFi UNAS 2 Review – Connectivity & Performance

The UNAS 2 relies on a single 2.5 GbE RJ45 port for both data and power, with PoE++ providing up to 60W of combined budget. This integration reduces cabling and eliminates the need for an external power brick, but it introduces a single point of failure. That said, the UNAS 2 retail kit DOES include a PoE mains adapter, so ultimately the end user does have the option of deploying in a traditional manner (though power and network connectivity are still funnelled into the same connector).

If the cable or port fails, both power and connectivity are lost. A 60W PoE++ injector is included in the package for users without a compatible PoE++ switch, but this approach remains less flexible than traditional dual-port NAS designs. There is no secondary network interface, Wi-Fi connectivity (rare in a system of this scale, but would allow for failover if it was), support of a USB network adapter or option for link aggregation, which makes the system dependent on one connection for all network and power needs.

In addition to the Ethernet port, the front of the device includes a USB-C interface rated at 5 Gbps. This provides the ability to attach external storage devices, enabling data import, backups, or temporary storage expansion. However, the USB port is limited to storage and does not support network adapters, UPS integration, or official expansion enclosures. While the addition of USB-C addresses one omission from the UNAS Pro, its functionality is constrained and focused solely on external drive access.

Network throughput reflects the limitations of a dual-drive ARM-based NAS. In testing with two 8TB HDDs in RAID 1, sequential read speeds reached around 260 MB/s, while write speeds varied between 160–180 MB/s depending on workload. Benchmarks such as AJA and CrystalDiskMark confirmed this pattern, with read performance consistently higher than write due to the processor’s handling of RAID and data caching. These figures make effective use of the 2.5 GbE interface but leave no capacity to challenge higher multi-gigabit standards.

Power consumption aligns with UniFi’s published specifications, averaging 16–17W in idle, 18–20W during light activity, and 23–24W under heavier use. Peak usage during sustained transfers with RAID synchronisation reached approximately 25W, well below the 60W ceiling. Thermal monitoring showed the CPU rising toward 79–80°C under stress, though the chassis fan helped bring temperatures back into the 50–60°C range once load reduced. These results indicate that while the system operates within its defined limits, sustained workloads push the ARM processor and cooling system close to their maximum operating range.

Noise levels were modest, with idle operation producing around 31–32 dBA and workloads raising this to 35–38 dBA. The shared dual-drive cage design contributed to additional vibration, particularly when placed on a hard surface. Rubberised feet help dampen this effect, but vibration noise was noticeably reduced when the device was placed on softer material such as foam. Overall, while the system remains relatively quiet, its acoustic profile is closely tied to the drives selected and the surface it rests on.

• Network Interface: 1 x 2.5 GbE RJ45 (PoE++)

• USB Ports: 1 x USB-C (5 Gbps, storage only)

• PoE Power Budget: 60W (52W available for drives)

• Power Supply: 60W PoE++ injector included

• Max Consumption: 60W (typical 16–25W during use)

• Tested Performance: ~260 MB/s reads, 160–180 MB/s writes (RAID 1, HDDs)

• Noise Levels: 31–32 dBA idle, up to 38 dBA under load

• Temperature Range (Observed): 75–80°C CPU under stress, 50–60°C idle/light use

UniFi UNAS 2 Review – Software and Services

The UNAS 2 runs on UniFi’s NAS management platform, which follows the same single-pane-of-glass interface design seen in the UNAS Pro and UNAS Pro 8. Administration is carried out via a web browser or through a ui.com account, with the option to disable cloud access and operate the system entirely on a local network.

The interface consolidates system status, storage health, user accounts, and backup management into one dashboard. While straightforward to use, it does not provide the same level of customisation or feature depth offered by longer-established NAS operating systems such as Synology DSM or QNAP QTS.

Storage management is limited by the two-bay architecture. Users can create RAID 0 or RAID 1 volumes, or operate drives independently. Drive health monitoring, temperature reporting, and snapshot scheduling are all included, allowing basic resilience and file recovery options.

Snapshots can be created and managed at the folder level, with the ability to lock snapshots to prevent deletion. Encryption, however, does not appear to be available on the UNAS 2, in contrast to larger UniFi NAS models where encrypted volumes are supported.

Backup functionality includes both system configuration and file-level options. Configuration backups can be stored locally or uploaded to a ui.com account, allowing the system to be restored quickly if reset or replaced. File-level backups extend to other UniFi NAS systems and selected cloud services, including Google Drive, with scheduling available for automation.

Local LAN backups to other storage devices via SMB are also supported, though filtering and exclusion rules are limited. The system is therefore capable of basic backup routines but lacks the more granular tools available on competing platforms.

User and access management is integrated into the UniFi ecosystem. Administrators can create local accounts or bind accounts to UniFi’s identity services, with two-factor authentication supported via the UniFi Verify app.

Permissions can be set at the folder level, and users can be restricted to LAN-only access if required. Supported protocols include SMB and NFS, but there is no iSCSI target functionality, limiting its application in virtualisation or editing workflows.

The software also includes fan control and system monitoring tools, but resource reporting is basic, with only CPU and memory utilisation graphs available.

Overall, the software reflects UniFi’s effort to balance simplicity with integration, but it remains less comprehensive than that of established NAS vendors.

UniFi UNAS 2 Review – Verdict and Conclusion

The UniFi UNAS 2 is presented as a compact and affordable two-bay NAS designed for straightforward storage and backup tasks, particularly within environments already using UniFi networking hardware. Its PoE++ design is distinctive, allowing both power and connectivity to be delivered over a single cable, simplifying installation where compatible PoE switches are available. This approach aligns with UniFi’s strategy of reducing external hardware requirements, though it also means that a failed port or damaged cable will disable both power and network access simultaneously. For non-UniFi users, the reliance on PoE++ creates an additional barrier, as adoption requires either compatible infrastructure or the included 60W injector. The shared dual-drive tray, lack of hot-swap support, and absence of expansion options further reinforce the system’s role as a fixed-capacity solution, best suited to smaller or secondary deployments. With a maximum drive budget of 52W and overall consumption limited to 60W, the device is power-efficient, but its architecture prioritises simplicity over flexibility.

On the software side, the UNAS 2 provides a user-friendly interface with access to snapshots, RAID configuration, system backups, and integration into the UniFi identity ecosystem. However, the limited hardware constrains the range of features available, and certain tools seen in UniFi’s larger NAS models are absent, such as encrypted volumes or extended network protocol support. Performance testing showed sequential read speeds up to 260 MB/s and write speeds around 160–180 MB/s, which make full use of the 2.5 GbE interface but leave little headroom for more demanding tasks. Thermals during extended use regularly pushed the CPU into the high 70s Celsius, and although fan management can be adjusted, sustained workloads highlight the limits of the system’s cooling design. The software’s omission of iSCSI and advanced backup filters also narrows its role, making it less competitive against established vendors in professional or virtualisation scenarios.

Ultimately, the UNAS 2 is most appropriately positioned as an edge or secondary NAS, providing basic networked storage for existing UniFi users who value plug-and-play deployment and ecosystem consistency, but it is not equipped to serve as a primary system in larger or more demanding environments (VMs, Containers, etc). A great and unique NAS that will nbe at it’s most appealing if you are already invested in the UniFi ecosystem, or have a NAS already that needs a network backup.

You can buy the UniFi UNAS 2 NAS via the link below – doing so will result in a small commission coming to me and Eddie at NASCompares, and allows us to keep doing what we do! 

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This description contains links to Amazon. These links will take you to some of the products mentioned in today's content. As an Amazon Associate, I earn from qualifying purchases. Visit the NASCompares Deal Finder to find the best place to buy this device in your region, based on Service, Support and Reputation - Just Search for your NAS Drive in the Box Below

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If you like this service, please consider supporting us. We use affiliate links on the blog allowing NAScompares information and advice service to be free of charge to you.Anything you purchase on the day you click on our links will generate a small commission which isused to run the website. Here is a link for Amazon and B&H.You can also get me a Ko-fi or old school Paypal. Thanks!To find out more about how to support this advice service check HEREIf you need to fix or configure a NAS, check Fiver Have you thought about helping others with your knowledge? Find Instructions Here  

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Why are NAS Systems not 10GbE as Standard Right Now?

It is 2025, yet the majority of NAS systems on the market continue to ship with 1GbE or, at best, 2.5GbE networking, leaving many users questioning why 10GbE has not become a standard feature. Over the past decade, the cost of 10GbE networking equipment, including switches, NICs, and adapters, has steadily declined, and the technology has long since moved from being an enterprise-only option into mainstream availability. Home labs, creative professionals, and small businesses are increasingly working with 4K and 8K media, large VM environments, and multi-terabyte datasets, all of which can easily saturate a 1GbE or even 2.5GbE connection. Despite this shift, when browsing the portfolios of Synology, QNAP, Asustor, TerraMaster, or even newer DIY-friendly NAS brands, the entry-level and mid-tier systems remain locked at bandwidth speeds that are already dwarfed by modern SSD arrays and multi-bay RAID configurations.

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This gap between user expectations and manufacturer offerings has become more striking as affordable consumer motherboards and even some mini-PCs now integrate 5GbE or 10GbE as standard. By contrast, NAS vendors still tend to position 10GbE as a high-end add-on or restrict it to flagship models, often requiring costly proprietary NIC upgrades. For the average buyer, this creates the perception that NAS devices are lagging behind broader networking trends and are artificially constrained to maintain price tiers. The reality is more complex. The question of why 10GbE has not become universal in NAS hardware cannot be answered solely by pointing to falling market prices of controllers and switches. Instead, the explanation lies in a mix of economics, hardware design limitations, CPU lane allocations, and the fact that networking itself is evolving beyond 10GbE into alternatives like 25GbE and USB4. All of these factors together show why the integration of 10GbE into NAS devices remains more complicated than it may first appear.

Discussing the Issue / Barriers to Manufacturers

One of the most persistent barriers to universal 10GbE adoption in NAS systems is the economic reality of how these devices are positioned. Vendors like Synology, QNAP, and Asustor operate in a layered product ecosystem, where each tier is designed to push customers toward more expensive models. Entry-level devices often compete on affordability rather than raw performance, meaning that features like 10GbE are deliberately held back to differentiate mid-range and enterprise systems. The actual bill of materials (BOM) cost for including 10GbE hardware is lower than it was five years ago, but manufacturers still view it as a premium feature that justifies higher price points. By holding 10GbE in reserve for upper tiers, vendors protect their margins, avoid cannibalising sales of more profitable models, and keep upgrade paths clear for customers as their needs grow. This is not simply technical gatekeeping but a conscious market segmentation strategy.

A second, more technical challenge comes from CPU and chipset design. The processors used in affordable NAS devices are almost always low-power embedded models—Intel Celeron, Atom, or entry-level AMD Ryzen Embedded chips—which provide only a limited number of PCIe lanes. These lanes must be distributed across storage controllers, NVMe slots, expansion slots, and network interfaces. Introducing 10GbE requires not only dedicating at least two, and often four, PCIe lanes, but also ensuring that the CPU can handle the higher throughput without becoming the bottleneck. If a vendor reallocates lanes to add 10GbE, they may have to reduce the number of NVMe slots, cut down on SATA ports, or compromise expansion card bandwidth. For many manufacturers, it is simpler to leave 10GbE out of the base design than to risk producing a system that looks good on paper but struggles to deliver in practice.

Beyond lane allocation, there is also the issue of power, thermals, and board layout. 10GbE controllers typically draw more power and generate more heat than 1GbE or 2.5GbE chips. In compact NAS enclosures designed for low-noise operation, this can force more aggressive cooling solutions or tighter thermal management. For brands already working within strict acoustic and energy efficiency limits, especially in home or small office NAS devices, the integration of 10GbE becomes a balancing act between speed and stability. Higher thermal load can also reduce the overall lifespan of components or require larger enclosures, both of which erode the appeal of entry-level systems where buyers expect compact and efficient designs.

Another factor that discourages widespread 10GbE adoption is ecosystem alignment. NAS vendors are keenly aware that a large percentage of their target audience does not yet operate in 10GbE-ready environments. Even though 10GbE switches and NICs are more affordable in 2025, many households and small offices still rely on routers and switches with 1GbE or 2.5GbE uplinks. For these users, the inclusion of 10GbE would have little practical benefit, since the rest of the network infrastructure cannot support it. From the manufacturer’s perspective, bundling 10GbE into a device that will simply be throttled by the customer’s network backbone risks making the feature look pointless, or worse, “non-functional.” As such, 10GbE tends to be reserved for prosumer and enterprise segments, where it is more likely that users already have or are willing to invest in compatible infrastructure.

Finally, there is a subtle but important business factor at play: vendor ecosystems and upsell opportunities. Many NAS brands sell proprietary 10GbE upgrade cards or branded NICs, which can only be used with their systems. By omitting onboard 10GbE but providing expansion slots, vendors create an additional revenue stream while giving customers flexibility to upgrade later. This model also ensures that users who truly require 10GbE end up spending more within the brand’s ecosystem, while casual buyers stick to lower-cost systems that do not overdeliver. In this sense, the absence of 10GbE on affordable NAS units is not only about technical limitations, but also about preserving a staged upgrade model that aligns with each brand’s long-term revenue strategy.

The Solution – How Can 10GbE Be More Accessible?

The landscape for 10GbE networking hardware has improved significantly in the last few years, with controllers becoming cheaper, more efficient, and easier to integrate into consumer systems. Early 10GbE relied heavily on costly Intel or Mellanox chipsets designed primarily for enterprise servers, often priced in the hundreds of dollars per card. Today, vendors such as Realtek, Aquantia (now under Marvell), and Broadcom produce consumer-focused 10GbE controllers that are smaller, run cooler, and consume less power. These newer chipsets are also designed to integrate more smoothly with mainstream CPUs and motherboards, reducing the need for complex PCB layouts. The result has been a marked reduction in the cost of standalone NICs and USB-to-10GbE adapters, which now frequently sell for under $100, making them accessible even for home users experimenting with faster networking.

Even with this progress, manufacturers remain hesitant to make 10GbE a baseline feature across all NAS devices. Part of the reason lies in how modern NAS systems must juggle limited resources. As CPUs have shifted to PCIe Gen 4 and Gen 5, the available bandwidth has increased, but vendors are also using these lanes to expand NVMe storage pools, enable GPU acceleration, or add AI-focused co-processors for surveillance, indexing, or media analysis. In many cases, vendors see greater value in offering more M.2 slots, dual PCIe expansion options, or flexible NIC bays than in permanently dedicating space to 10GbE. This explains why hybrid designs are now common: devices shipping with 2.5GbE or 5GbE onboard, with a dedicated slot for an optional 10GbE card. Such configurations give users a faster-than-gigabit baseline, but also keep upgrade paths open for power users who truly need multi-gigabit networking.

The state of 10GbE is also being influenced by the rapid adoption of adjacent technologies. 2.5GbE has become the de facto standard in new consumer motherboards and mid-tier switches, offering a cheap and widely compatible upgrade path for everyday users who want more than 1GbE without changing their cabling. At the other end of the spectrum, higher-speed networking such as 25GbE or 40GbE is filtering down from data centres to advanced prosumer setups, while direct-connect solutions like Thunderbolt 4 and USB4 offer bandwidth well beyond 10GbE with less CPU overhead and simpler plug-and-play deployment. Software optimisation is also playing a role: modern NAS operating systems increasingly support IP over Thunderbolt or USB4, which provides a parallel path to multi-gigabit performance without the traditional reliance on Ethernet standards. As a result, 10GbE finds itself squeezed in the middle—too expensive to be a no-brainer at the entry level, but increasingly overshadowed by faster alternatives at the top end. It remains a critical sweet spot for small businesses and creative professionals, but its window of dominance is being challenged by the pace of networking innovation.

Verdict and Conclusion – Buy a 10GbE NAS Now or Wait?

The question of why 10GbE has not become a standard feature across NAS devices in 2025 does not have a single answer, but rather a convergence of factors. Manufacturers face technical challenges in CPU lane allocation, thermal management, and system design, while also making deliberate market choices to protect product segmentation and encourage upsell opportunities. At the same time, 10GbE sits in an awkward position within the networking landscape: cheaper and more efficient than ever, yet increasingly bypassed by the widespread adoption of 2.5GbE on the low end and the emergence of 25GbE, Thunderbolt, and USB4 on the high end. For now, this means that 10GbE remains reserved for higher-tier NAS systems where the hardware can genuinely sustain its throughput and where the user base is prepared to invest in compatible infrastructure. While prices will continue to fall and adoption will grow, it is unlikely that every NAS will adopt 10GbE as standard before other technologies begin to replace it as the next performance baseline.

5 affordable Turnkey 10GbE NAS Solutions (Between $499 and $699)

For years, 10GbE networking has been seen as a premium feature reserved for high-end or enterprise-grade NAS devices, often pushing total system costs well beyond the reach of home users and small businesses. However, as controller prices have dropped and demand for faster data transfers has grown, a new wave of affordable NAS solutions has started to appear with built-in 10GbE. These systems no longer require expensive proprietary upgrade cards or third-party NICs, and many sit comfortably below the $699 / £599 price point. They cover a range of use cases, from compact SSD-based NAS devices to rackmount storage appliances and versatile desktop units. Below is a selection of some of the most notable options currently available, each offering a balance of performance, connectivity, and affordability for users who want to move beyond 1GbE or 2.5GbE without breaking the bank.

UniFi UNAS Pro (7-Bay, Rackmount)

I keep coming back to two words for the UniFi UNAS Pro—fundamentals and consistency. UniFi has clearly focused on making this system a strong addition to their ecosystem, prioritizing the essential storage needs of a NAS. They’ve succeeded in this, but comparisons with long-established competitors are inevitable. While solid, reliable, and stable, the UniFi UNAS Pro will take time to be competitive on the software front. If you’re deeply invested in the UniFi ecosystem, you’ll appreciate its ease of use and integration. However, outside of a UniFi network, it may feel feature-light compared to alternatives. The pricing is competitive for a launch product at $499, and while it’s not the best NAS on the market, it’s the most user-friendly and UniFi-ready. It will likely satisfy many users’ needs. I can certainly see this being integrated into existing UniFi networks as a 2nd stage backup alongside their already existing 3rd party NAS solution, with the potential to graduating to their primary storage as Ubiquiti continue to evolve this platform above and beyond the fundamentals their have nailed down in the UNAS Pro system.

• Approx. Price: $499 / £400

• Specs: ARM Cortex-A57 quad-core CPU, 8 GB RAM, seven 2.5″/3.5″ SATA bays, 1×10GbE SFP+ and 1×1GbE.

• Why It Stands Out: Exceptional price-to-performance for pure storage needs. Lacks advanced multimedia or container apps but ideal for high-speed backups in a rackmount setup.

BUILD QUALITY - 10/10

HARDWARE - 7/10

PERFORMANCE - 7/10

PRICE - 9/10

VALUE - 8/10

8.2

PROS

Nails down the fundamentals of NAS Storage very well
Easy to use GUI and well suited in the UniFi Ecosystem/UX
Complete Offline Use is supported
Use of a UI account is NOT compulsory
Excellently deployed Snapshot Features
10GbE out-the-box
Open HDD Compatibility, but also 1st party options too
Backup and Restoration Options Nailed down perfectly
Very power efficient and CPU/, Memory utilization rarely high
Compact, Quite and well designed chassis
The LCD controls are completely \'different level\' compared to other brands in the market
Promised competitive pricing
FAST deployment (3-5mins tops)
Reactive Storage expandability and easy-to-understand storage failover options
Mobile app deployment is intuitive/fast
Feels stable, secure and reliable at all times
Performance is respectable (considering SATA Bay count and CPU) but also sustained performance is very good
Single screen dashboard is clear and intuitive
Ditto for the native file explorer

CONS

7 Bays is a bit unusual, plus feels like the existing UNVR with different firmware
Additional App installation (eg. \'Protect\') not currently supported. So no container support for 3rd party apps
Network Controls are limited
Works at it\'s best in an existing UniFi managed network, feels a little limited in \'standalone\'
Multiple storage pools not supported (nor is RAID 0)
Lack of Scheduled On/Off
Lack of redundant PSU
Only 1 10Gb port and 1x 1GbE, no USBs for expanded storage or an expansion

Asustor Flashstor 12 Gen 1 (Compact NVMe NAS)

The Asustor Flashstor Gen 2 12-Bay NAS is a robust and versatile solution for users with demanding storage needs. Its combination of high-performance hardware, extensive connectivity options, and compact design makes it a standout choice for content creators, small businesses, and enthusiasts. With dual 10GbE ports, USB 4.0 connectivity, and support for up to 12 M.2 NVMe drives, it offers exceptional speed and scalability. While the device has a few quirks, such as its mixed PCIe slot speeds and lack of M.2 heat sinks, these are manageable with proper planning and aftermarket solutions. The Flashstor Gen 2 excels in raw performance, handling intensive workflows with ease and maintaining low noise levels even under load. Its power efficiency and robust thermal management further enhance its appeal for 24/7 operation. For users prioritizing hardware capabilities and performance, the Flashstor Gen 2 delivers on its promises. While its complexity may deter less experienced users, those with the technical expertise to configure and optimize the system will find it a valuable addition to their workflow.

• Approx. Price: $750 / £600

• Specs: Intel Celeron N5105, 12×M.2 NVMe slots, single 10GbE port, compact form factor.

• Notable Traits: High-density SSD storage in a small desktop chassis. Excellent value for SSD-heavy builds.

SOFTWARE - 6/10

HARDWARE - 9/10

PERFORMANCE - 10/10

PRICE - 7/10

VALUE - 8/10

8.0

PROS

Exceptional Performance: Dual 10-Gigabit Ethernet ports and USB 4.0 connectivity deliver fast and reliable data transfer speeds, ideal for 4K editing and collaborative environments.
Extensive Storage Options: Supports up to 12 M.2 NVMe SSDs, allowing for large-scale, high-speed storage arrays.
ECC Memory Support: Includes 16GB of DDR5-4800 ECC memory (expandable to 64GB), ensuring data integrity for critical applications.
Compact Design: Small footprint makes it perfect for workspaces with limited room.
Quiet Operation: Dual-fan system keeps noise levels low, even under heavy loads.
Flexible Connectivity: Features two USB 4.0 Type-C ports and three USB 3.2 Gen 2 Type-A ports for direct storage access and peripheral integration.
Power Efficiency: Low power consumption (32.2W idle, 56W under load) makes it economical to run, even for 24/7 operation.
Thermal Management Enhancements: Dual fans and copper heat pipes efficiently dissipate heat, ensuring stable performance.
Support for Third-Party Operating Systems: Compatible with platforms like TrueNAS and Unraid for advanced customization.

CONS

Mixed PCIe Slot Speeds: Inconsistent PCIe bandwidth across M.2 slots complicates unified RAID configurations.
Lack of M.2 Heat Sinks: NVMe slots do not include heat sinks, requiring aftermarket cooling solutions for intensive workloads.
No Integrated Graphics: The AMD Ryzen V3C14 processor lacks integrated graphics, limiting hardware transcoding and multimedia capabilities.
Steep Price: The 12-bay model’s cost ($1,300–$1,400) and the six-bay version’s lack of ECC memory make them expensive compared to alternatives.

UGREEN NASync DXP4800 Plus

BOTTOM LINE – The UGREEN NASYnc DXP4800 Plus does not feel ‘finished’ yet and still needs more time in the over, but UGREEN have been very clear with me that this product is not intended for release and fulfilment till summer 2024 and improvements, optimization and product completion is still in progress. Judging the UGREEN NAS systems, when what we have is a pre-release and pre-crowdfunding sample, was always going to be tough. The DXP4800 PLUS is a very well put-together NAS solution, arriving with a fantastic launching price point (arguably even at its RRP for the hardware on offer). UGREEN has clearly made efforts here to carve out their own style, adding their own aesthetic to the traditional 4-bay server box design that plagues NAS boxes at this scale. Equally, although they are not the first brand to consider Kickstarter/Crowdfunding for launching a new product in the NAS/personal-cloud sector, this is easily one of the most confident entries I have seen yet. The fact that this system arrives on the market primarily as a crowdfunded solution (though almost certainly, if successful, will roll out at traditional retail) is definitely going to give users some pause for thought. Equally, the UGREEN NAS software, still in beta at the time of writing, although very responsive and nailing down the basics, still feels like it needs more work to compete with the bigger boys at Synology and QNAP. Hardware architecture, scalability, and performance are all pretty impressive, though the performance of the Gen 4×4 M.2 NVMe slots didn’t seem to hit the numbers I was expecting. Perhaps a question of PCIe bottlenecking internally, or a need for further tweaking and optimization as the system continues development. Bottom line, with expected software updates to roll out closer to launch and fulfillment, such as an expanded App center and mobile client, the UGREEN DXP4800 Plus is definitely a device worth keeping an eye on in the growing Turnkey and semi-DIY NAS market. As an alternative to public cloud services, this is a no-brainer and worth the entry price point. As an alternative to established Turnkey NAS Solutions, we will hold off judgment till it is publicly released.

• Approx. Price: $595 / £475

• Specs: Intel Pentium Gold 8505 (6-thread), 8 GB DDR5, 4×SATA + 2×M.2 slots, 1×10GbE and 1×2.5GbE, plus HDMI, USB-C, USB-A, and SD reader.

• Why It’s Attractive: Well-rounded design with rich connectivity and media support, undercuts most rivals on price and features.

SOFTWARE - 6/10

HARDWARE - 9/10

PERFORMANCE - 6/10

PRICE - 9/10

VALUE - 8/10

7.6

PROS

Exceptional Hardware for the Price
4 HDDs + 2x Gen 4x4 M.2 in 1 box under $400
Good Balanced CPU choice in the Pentium Gold 8505
10GbE and 2.5GbE as standard
An SD Card Slot (wielrd rare!)
10/10 Build Quality
Great Scalability
Fantastic Mobile Application (even vs Synology and QNAP etc)
Desktop/Browser GUI shows promise
Established Brand entering the NAS Market
Not too noisy (comparatively)
Very Appealing retail package+accessories

CONS

10GbE Performance was underwhelming
Crowdfunding choice is confusing
Software (still in Beta) is still far from ready 22/3/24
non-UGREEN PSU is unexpected

TerraMaster F4-424 Max / F6-424 Max

The TerraMaster F4-424 Max is a robust 4-bay NAS system that offers a powerful mix of features and flexibility for a wide range of tasks. Powered by the Intel i5-1235U CPU with 10 cores and 12 threads, the F4-424 Max excels at resource-intensive applications such as Plex media streaming, 4K hardware transcoding, and virtual machine hosting. Its dual M.2 NVMe slots running at PCIe Gen 4 speeds significantly improve storage performance, especially when used for caching, while the two 10GbE ports offer high-speed networking environments, allowing for 20Gbps throughput via link aggregation.

In terms of software, TOS 6 brings notable improvements, although it still lags behind the more polished ecosystems of Synology DSM and QNAP QTS. That said, TerraMaster’s continuous software evolution with each new version of TOS ensures that users have access to more robust tools and security features. For its price point of $899.99, the F4-424 Max is a compelling option for those seeking high-performance NAS solutions with scalability in mind. While the Pro model offers competitive performance, the Max takes it a step further with advanced networking, making it ideal for environments where speed is a priority.

• Approx. Price: $675 / £550 (F4-424 Max, during sale) – $899 / £700 (F6-424 Max, regular)

• Specs: Intel Core i5-1235U (10-core), 8 GB RAM, dual 10GbE ports, dual M.2, with 4 or 6 SATA bays depending on model.

• Why It Helps: The F4-424 Max frequently drops below the $800 mark in promotions, offering unusually strong CPU performance and dual 10GbE at a mid-range price point.

SOFTWARE - 6/10

HARDWARE - 9/10

PERFORMANCE - 9/10

PRICE - 9/10

VALUE - 8/10

8.2

PROS

Powerful Hardware: Intel i5-1235U with 10 cores and 12 threads for resource-heavy tasks.
Dual 10GbE Ports: High-speed networking capabilities with link aggregation for up to 20Gbps, ideal for large file transfers.
PCIe Gen 4 NVMe Support: Two M.2 NVMe slots offering exceptional performance for caching or additional high-speed storage.
Efficient Cooling: The large 120mm fan ensures quiet and effective cooling, making it suitable for home and office environments.
Improved TOS 6 Software: Enhancements in GUI, backup tools, and overall security bring TOS closer to its competitors.

CONS

Higher Price Tag: At $899.99, it’s more expensive than TerraMaster’s other models, which may deter budget-conscious buyers.
No PCIe Expansion: Lack of a PCIe slot limits potential for future upgrades, such as adding 10GbE cards or more M.2 drives.
Presentation: The software has improved a lot, but still feels inconsistent in places compared with alternatives from brands such as Synology and QNAP.

Summary Table

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Ubiquiti est un acteur majeur de solutions réseau pour professionnels et particuliers exigeants. Ce dernier vient d’annoncer l’arrivée d’UniFi OS Server. Cette version auto-hébergée de son système d’exploitation réseau offre une alternative solide à ses consoles physiques tout-en-un. Elle s’adresse en priorité aux prestataires IT, aux intégrateurs et aux équipes techniques souhaitant garder le contrôle total sur leurs données et leur infrastructure.

UniFi OS Server : alternative à la version Docker

Jusqu’à présent, l’écosystème UniFi reposait essentiellement sur deux solutions : des consoles physiques (comme la Dream Machine ou le Cloud Key) et une version Docker, non officielle mais largement utilisée pour faire tourner UniFi Network sur son propre serveur (ou NAS).

UniFi OS Server vient formaliser cette approche auto-hébergée avec une version officiellement supportée, plus stable et parfaitement intégrée dans l’écosystème UniFi. Concrètement, il s’agit du même système que celui embarqué dans les consoles UniFi, désormais exécutable sur un PC, une machine virtuelle ou encore un Raspberry Pi. Ubiquiti indique clairement « x86/x64/ARM64 » et c’est gratuit.

Des fonctionnalités complètes

UniFi OS Server embarque l’ensemble des services UniFi, prêt à être déployé sur l’infrastructure de votre choix. Contrairement à la version Docker, souvent limitée et sensible aux mises à jour. Cette version bénéficie du même niveau de support que les appliances officielles : Network, Protect, Access et Drive. Elle permet également l’accès aux autres fonctionnalités avancées comme :

• Site Magic (orchestration SD-WAN) ;
• InnerSpace (analyse RF et visualisation sur plan) ;
• UniFi Identity (gestion des accès et politique Zero Trust).

L’un des atouts majeurs réside dans la liberté matérielle qu’offre cette solution. Vous pouvez choisir la puissance CPU, la quantité de mémoire et l’espace de stockage en fonction des besoins spécifiques de chaque projet.

Cloud optionnel

UniFi OS Server peut fonctionner en totale autonomie, sans dépendance au Cloud. Les données restent hébergées localement, ce qui répond aux exigences de souveraineté et de conformité de nombreuses organisations. Pour les utilisateurs souhaitant une gestion centralisée à l’échelle de plusieurs sites, la solution peut s’intégrer avec UniFi Site Manager, la plateforme de supervision cloud d’Ubiquiti.

En synthèse

UniFi OS Server officialise ce que beaucoup de professionnels attendaient : une version maîtrisable, évolutive et durable de l’OS UniFi, sans dépendance au cloud… mais sans renoncer aux outils de gestion centralisée pour ceux qui en ont besoin (pas d’abonnement et sans contrainte matérielle).

Aucune date de sortie officielle n’a encore été annoncée, mais le logiciel est déjà accessible en version Early Access pour les partenaires et utilisateurs inscrits au programme. A suivre…

source

UniFi USB4/TB4 to 10GbE Adapter Review

Given the preponderance of 10 Gb Ethernet solutions available in the UniFi portfolio, it’s actually kind of weird that the brand has waited until almost halfway through 2025 to launch a convenient USB to 10G NIC adapter. To put it into perspective, the first generation of Thunderbolt to 10 GbE adapters arrived way back in 2018 from brands such as QNAP, StarTech, and Akitio. Despite this, however, there is still increasing demand for these convenient 10G upgrade alternatives to desktop PCIe card options, due to the growing support of USB4 client hardware, as well as its backwards compatibility with Thunderbolt 3 and Thunderbolt 4. This means that even particularly modest mini PCs and laptops now have the opportunity to scale up towards 10G easily. So, what exactly sets this new adapter from UniFi apart from the already quite oversaturated market of Thunderbolt/USB to 10 GbE adapters? Is it just the same thing with their own badge on top? Does it deserve your money and your data?

UniFi USB4 and TB4 to 10GbE Adapter Review – Quick Conclusion

UniFi have not really reinvented the wheel here. They were not the first to roll out Thunderbolt/USB 10G network adapters, and they certainly won’t be the last. It’s still a little confusing why it took the brand this long to roll out its own convenient accessory, but at least they’ve launched it with the latest controller on board—leading to a great deal more flexibility in its deployment on different client hardware, as well as reduced power consumption compared with the first generation of such adapters. The price of $199 lands pretty squarely between more cost-effective options in the market right now that use the previous generation controller, and the new generation of adapters arriving from brands like QNAP that feature the same hardware architecture as the UniFi option but are around $50 to $100 more. The design of this adapter is smaller and lighter than other options in the market by quite some margin, and as it is bus-powered and has no active cooling, the device is eminently portable and low-impact. All that said, it lacks the ridging and venting of other options in the market. Equally, we are on the cusp of just how big the evolution of USB4 network controllers is soon to become, and later this year we are likely to see the first generation of USB4 to 25G or 2x10GbE adapters arrive—clearly, these will scale in cost and won’t arrive for a great deal of time, but for those looking at this adapter as a means of future-proofing, you may well see the benefits in holding out a little bit longer. Nevertheless, UniFi have again released a great, solid network adapter here that does nothing wrong, and although they’ve arrived a little late to the party on this one, it’s still a very solid offering.

UniFi USB4 and TB4 to 10GbE Adapter Review – Design

As I’ve already mentioned, there are already a decent number of USB-C to 10 GbE network adapter options in the market, and given UniFi’s unique design choices, I’m always interested to see how Ubiquiti goes about designing their own version of something that the market already has—but more importantly, what exactly are they bringing to it that doesn’t already exist in the marketplace.

In the case of this adapter, the main three things that this adapter seemingly introduces over the status quo are:

• Their adapter is smaller in size and lighter in weight than pretty much every other adapter in the market for 10 GbE via USB-C.

• Their adapter has a lower power consumption than practically all other USB-C to 10 GbE Ethernet adapters.

• Their adapter uses a much more up-to-date and recent controller than any other Thunderbolt to 10G adapter released before 2025.

Those first two points are going to be very attractive to users who have been weighing up the need to buy an adapter over the last few years that connects via USB-C, but we are going to have to drill down a little bit later into why that third point is quite important to users with older generation equipment. But we’ll get back to that later.

The adapter is pretty damn small, as its completely metal external chassis is fanless. The adapter relies heavily on a controller-mounted heatsink internally that is connected to a thermal pad attached to the external metal casing. The USB Type-C input provides both data and power via a single interface, and this adapter supports Thunderbolt 3, Thunderbolt 4, and USB4. That also means that it will most certainly work with future generations of USB and the slowly rolling-out Thunderbolt 5 protocol. Crucially though, it’s worth noting that this adapter does not support USB 3.2 Gen 1 or Gen 2—domestic USB that a lot more value devices either exclusively have or the port that is more commonly found on everything else. So, despite the 5 to 7-year release difference between this adapter and the first generation of Thunderbolt to 10 Gb Ethernet USB bus-powered adapters, compatibility on especially legacy equipment is not guaranteed.

It is also worth touching on that adapters like this are chiefly designed for users that have client hardware that cannot support a traditional PCIe upgrade card for adding improved network interfaces. If you have the facility to add 10 Gb Ethernet via a PCIe slot, I would always recommend that instead of an adapter like this. It will end up being far more power efficient and considerably lower in price. But for those in a pinch that need a portable and easy-to-adopt network upgrade on their system, this is a great choice.

If you are in the market for improved network connectivity and 10 GbE is a bit too rich for your blood or your needs, you can still get hold of incredibly cost-effective USB to 5 Gb Ethernet adapters for as little as $30 right now. They also allow connectivity with legacy USB 3.2 connections as well. So, if you don’t actually need full 10 GbE, and your switch supports auto-negotiation with 5 GbE, you could save a bunch of money.

Check Amazon for a $30 USB to 5GbE Adapter HERE – Check AliExpress for $30 USB-to-5GbE Adapter HERE

Do keep in mind that there are affordable USB to 5 GbE adapters in the market. I’m actually kind of surprised that UniFi haven’t integrated a USB to 5 Gb Ethernet adapter into their lineup already, as there is definitely a growing demand for this middle choice in network connectivity at the home and prosumer level—especially as more routers and network switches roll out with both 2.5 GbE and 5 GbE support.

UniFi USB4 and TB4 to 10GbE Adapter Review – Hardware

The physical connection on the other side of this UniFi adapter is a 10GBASE-T copper connection. This is generally perfect up to about 20 meters, and although you can use it over longer distances, at that point you tend to experience some resistance and a drop in latency. A fiber SFP option would have been great, but if they were only going to launch one version—now or ever—almost certainly the one users would want for convenience is going to be the copper option. The adapter also supports auto-negotiation as you’d expect, and although some client hardware will require you to install the AQC113 driver, it is broadly available for the majority of platforms ranging from Windows to Mac and custom Linux builds. That said, support in most open-source NAS software is still a little patchy.

In terms of performance, I’m pleased to say that when connecting with a 10 GbE NAS system via a 10G copper switch, this adapter comfortably hit 10 GbE saturation very easily. Consistent testing by CrystalDisk and AJA using a NAS equipped with a 10 GbE port and SSDs allowed this adapter to run consistently with repeated 1 GB tests over 10 GbE for 15 minutes with sustained performance. Clearly, the performance you’re going to achieve with an adapter like this will be heavily based on both the network activity and the target IP device, but even this limited testing showed that this adapter is more than capable of hitting those performance numbers.

When the adapter was running full-flow, and after 10 minutes of sustained use, it was hitting around 44 to 45°C. When idle, the adapter rested at around 40°C when not in use. One slight complaint I had was that the adapter did not especially quickly dissipate the gathered heat during testing—and that didn’t come as a huge surprise. As this adapter lacks any active cooling system internally, lacks the ridged heatsink design of a lot of other USB-to-10G adapters on the market, and is notably more compact than other options, it was inevitable that temperatures might get a little spicy. Nevertheless, I am a little disappointed at how slowly heat was dissipated between uses, and that is sadly a price many users who want a compact adapter like this are going to have to pay.

Now I want to discuss the network controller inside this UniFi USB4-to-10G adapter, as I think it’s going to be an important area of distinction for buyers considering this new $200 10G adapter versus cheaper or more expensive alternatives that have been in the market for more than 5 years. The first generation of Thunderbolt-to-10G adapters that arrived way back in 2018/2019 featured the AQN-107 controller. This was designed exclusively for Thunderbolt connections and was a controller running on a PCIe Gen 3 x4 mounted connection in those adapters. This more modern controller is the AQC113, and alongside arriving in a smaller physical size with lower power consumption, it crucially runs on a flexible PCIe Gen 3/4 x1, x2, or x4 architecture as needed.

The reason this is important is that when Thunderbolt 4 and USB4 arrived on client hardware as more flexible and affordable alternatives to Thunderbolt 3, it also allowed client hardware creators to be a little bit more flexible on the allocated PCIe lanes that they would dedicate to USB4/Thunderbolt 3. As good as all this sounds, that meant that more modern hardware with USB4/TB4 (which is backwards compatible with TB3) often had much poorer or inconsistent performance when using the older generation TB3 10G adapters—because the adapter wasn’t flexible enough to adapt to the more dynamic deployment of USB4/TB4 on modern hardware. That is why the new controller and its flexibility may well run consistently better and more efficiently on modern hardware, as both the client and the adapter are more flexibly positioned to adapt to the unique deployments they may encounter.

Several of the existing USB-C to 10G network adapters in the market released over the last 5 years are soon to be updated with newer controllers (with QNAP recently upgrading their existing adapter with the new controller and increasing the price from $199 to $249 already). This is why I touched on earlier the importance of UniFi choosing the newer-gen controller for their adapter. It ensures far greater compatibility with modern USB4/TB3 architecture, as well as better flexibility for users on older-generation devices.

UniFi USB4 and TB4 to 10GbE Adapter Review – Verdict & Conclusion

Unless you properly dig down into just why both the internal hardware and the necessity for a device like this exist, chances are there are a lot of traditional 10G users who are going to question why you’d spend $200 on a USB adapter when there are cheaper and more power-efficient PCIe options on the market. Equally, there are going to be those who’ll point at UniFi releasing this adapter in 2025 and—without looking into how the hardware in these adapters has changed—will question why it took UniFi so long to jump on this bandwagon. To both of those kinds of users, I think they are either missing the point or need to spend a little bit more time looking at how this kind of technology has both changed and evolved for the better in the last few years. The original hurdles for users to scale up their network connectivity have evolved rapidly, and now even the most basic low-powered and low-priced Chromebook is not incapable of scaling up towards 2.5G and 5G network connections. Equally, as Thunderbolt and USB continue their tit-for-tat upgrades periodically, the network peripherals available to most users are evolving just as quickly. This new adapter takes advantage of the continued miniaturization of a lot of those components—and their growing comparative affordability.

I genuinely and wholeheartedly recommend the UniFi USB4 to 10 Gb Ethernet adapter. I also want to add that there are cheap alternatives in the market—if you’re a Thunderbolt 3 user, there are much cheaper alternatives for 2.5G and 5G. If you only have USB 3.2, those are also options to consider. And finally, keep your eyes on the end of 2025, as the controllers that made this adapter possible are going to start rolling out towards dual 10G and 2.5G solutions in due course. They will, of course, scale up in price too, but if you’re looking at this adapter for the sake of future-proofing rather than immediate deployment, you might want to hold off a little while longer. For everyone else, this is a fantastic and convenient network upgrade for content creators and prosumers alike.

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Best NAS You Can Buy Right Now (Mid-2025) for Under $499

As of mid-2025, the sub-$499 NAS market is more competitive than ever, with several brands offering systems that deliver strong hardware, dedicated operating systems, and multiple drive bays within a modest budget. For home users, prosumers, and small teams looking to centralize data, manage backups, or stream media locally, this price bracket now includes options that would have cost significantly more just a few years ago. From rackmount storage appliances to compact flash-based servers, there are now choices to suit a wide variety of workloads and network environments.

This article examines five out-of-the-box NAS systems that are currently available for $499 or less. While each system takes a slightly different approach—whether prioritizing raw bandwidth, containerization, virtualization support, or software simplicity—they all represent viable solutions for users seeking value without compromising core functionality.

Important Disclaimer and Notes Before You Buy

All of the NAS systems featured in this list are diskless, meaning they do not include storage media by default. Users will need to purchase compatible 3.5″ HDDs, 2.5″ SSDs, or M.2 NVMe drives separately depending on the system’s configuration. This significantly affects the total cost of ownership, particularly for all-flash systems where NVMe drives are required. Some devices also use onboard flash or eMMC storage to house the operating system, but this is not sufficient for general file storage. Buyers should also consider the cost of drives, RAID redundancy planning, and any accessories (e.g., cables or cooling enhancements) when budgeting for deployment.

Another consideration is the variation in NAS operating systems provided. While most models come with a vendor-specific OS—such as Synology DSM, TerraMaster TOS, UGOS, or Unraid—some platforms allow or even encourage the installation of third-party alternatives like TrueNAS or Unraid without voiding hardware warranties. However, in cases where the software stack is less mature or limited in features, users may need to invest more time configuring services such as Plex, Docker, or SMB sharing manually. As such, these systems are best suited to users who are comfortable managing basic network services or are willing to explore more advanced functionality over time.

UniFi UNAS Pro 7-Bay NAS

$499 – ARM Cortex-A57 – 8GB – 7x 3.5″ SATA – 1x 10GbE SFP+, 1x 1GbE – UniFi OS – BUY HERE

The UniFi UNAS Pro is a 2U rackmount NAS solution designed primarily for high-speed, large-scale data storage. It features seven hot-swappable 2.5″/3.5″ SATA drive bays and is built around a quad-core ARM Cortex-A57 processor running at 1.7GHz, paired with 8GB of onboard DDR4 memory. Unlike general-purpose NAS systems that include container support or multimedia features, this device is focused purely on network file storage. It offers robust network connectivity with both a 10GbE SFP+ port and a 1GbE RJ45 port, making it suitable for use cases where bandwidth is a priority—such as centralized backups, archival storage, or high-volume file transfers within a UniFi-managed network.

The system is managed via UniFi’s Drive app within the UniFi OS ecosystem, and supports standard RAID configurations including RAID 0, 1, 5, and 6. Power redundancy is provided via a dual-input system—an internal 200W AC/DC PSU and support for USP-RPS DC failover. There’s also a 1.3-inch front panel touchscreen for quick diagnostics and system status at the rack. While it lacks container support, virtualization, or media server capabilities, it integrates easily with other UniFi products or can operate as a standalone storage node in a mixed environment. For users who require reliable, scalable storage with 10GbE connectivity but can forego app extensibility, the UNAS Pro represents a straightforward, hardware-driven option in the sub-$500 space.

Component	Specification
CPU	Quad-Core ARM Cortex-A57 @ 1.7GHz
Memory	8GB DDR4
Drive Bays	7x 2.5″/3.5″ SATA HDD/SSD
Networking	1x 10GbE SFP+, 1x 1GbE
Power	200W internal PSU + USP-RPS redundancy
OS	UniFi OS / Drive App
Display	1.3″ touchscreen
Form Factor	2U Rackmount
Dimensions	442 x 325 x 87 mm
Weight	9.5 kg with brackets

---

UGREEN NASync DXP4800 NAS

$499 – Intel N100 – 8GB – 4x 3.5″ SATA + 2x M.2 NVMe – 2x 2.5GbE – UGOS Pro – BUY HERE

The UGREEN NASync DXP4800 is a desktop 4-bay NAS that combines hybrid storage architecture with modern I/O and a maturing proprietary OS. It is powered by an Intel N100 quad-core processor from Intel’s 12th-gen Alder Lake-N series, paired with 8GB of DDR5 memory and 32GB of onboard eMMC storage for the operating system. In addition to its four SATA bays, it includes two M.2 NVMe SSD slots, enabling users to build a fast caching tier or SSD-only volumes for improved application performance. Network connectivity includes dual 2.5GbE LAN ports, and the system supports link aggregation for higher throughput or failover scenarios.

On the software side, the unit runs UGOS Pro, UGREEN’s in-house NAS operating system. It includes support for RAID 0/1/5/6/10, Docker containers, Plex, remote access, and cloud sync tools. While UGOS is less mature than systems like DSM or TrueNAS, it has improved over successive updates and includes a clean web UI for file sharing, snapshots, and media streaming. Front and rear USB 3.2 ports (including USB-C) and an SD 3.0 card reader add to its usability for media professionals. For users who prefer a GUI-based setup with broad feature support and hybrid storage flexibility, the DXP4800 offers substantial value in the under-$500 bracket—especially when discounted.

Component	Specification
CPU	Intel N100 (4 cores, up to 3.4GHz)
Memory	8GB DDR5 (upgradable to 16GB)
Drive Bays	4x SATA (3.5″/2.5″) + 2x M.2 NVMe
Networking	2x 2.5GbE LAN
Ports	1x USB-C (10Gbps), 2x USB-A, SD Card Reader
Video Output	1x HDMI (4K)
OS	UGOS Pro
Power Consumption	35.18W (access), 15.43W (hibernation)
Dimensions	257 x 178 x 178 mm (approx.)

LincStation N2 NAS

$399 – Intel N100 – 16GB – 2x 2.5″ SATA + 4x M.2 NVMe – 1x 10GbE – Unraid OS – BUY HERE

The LincStation N2 is a compact, all-SSD NAS that delivers a high-performance spec sheet at a relatively low price. Powered by an Intel N100 processor and equipped with 16GB of LPDDR5 memory, it supports a mix of two 2.5″ SATA SSDs and four M.2 2280 NVMe drives. This six-bay design—entirely SSD-based—is geared toward users who require faster IOPS, quieter operation, and lower power draw than traditional hard drive-based systems. Network connectivity is handled by a single 10GbE RJ45 port, a rare inclusion in this price bracket and especially valuable for direct workstation or multi-client environments.

The device ships with an Unraid Starter license pre-installed, giving users access to advanced features like Docker container support, virtual machines, hardware passthrough, and flexible storage management. While Unraid requires some learning curve for new users, it offers a high degree of customization and adaptability compared with fixed software stacks. The system also includes HDMI output, USB-C, USB 3.2, and multiple USB 2.0 ports, making it suitable for use as a lightweight home server or media workstation. For users prioritizing SSD storage, 10GbE, and virtualization support, the LincStation N2 delivers a capable platform that’s uncommon at this price point.

TerraMaster F4 SSD NAS

$399 – Intel N95 – 8GB – 4x M.2 NVMe – 1x 5GbE – TOS (TerraMaster OS) – BUY HERE

The TerraMaster F4 SSD is a 4-bay, all-flash NAS designed for high-speed home storage, media streaming, and photo management. It is equipped with an Intel N95 processor, an entry-level quad-core CPU from Intel’s Alder Lake-N family, and 8GB of DDR5 memory via a single SODIMM module. Storage is handled via four M.2 NVMe slots: two operating at PCIe 3.0 x2 speeds and two at PCIe 3.0 x1. These are designed for SSDs only—no support for SATA drives is provided. On the network side, the unit includes a single 5GbE port, offering a higher single-link bandwidth than systems using dual 2.5GbE, and can be directly connected to 10GbE networks at reduced speeds.

The system runs TerraMaster’s TOS operating system, which supports multimedia applications like Plex and Emby, cloud sync, photo AI tagging, user account control, and flexible backup solutions. TOS includes support for Btrfs and TRAID (TerraMaster RAID), along with remote access features and mobile apps for file synchronization and photo uploads. With three high-speed USB ports (2x Type-A and 1x Type-C), HDMI output, and low-noise fan operation (~19 dB), the F4 SSD targets users looking for a quieter, flash-based NAS for home environments. It lacks 2.5″/3.5″ bay support but offers fast SSD performance in a small form factor with minimal configuration requirements.

Synology DiskStation DS425+ NAS

$499 – Intel Celeron J4125 – 2GB – 4x 3.5″ SATA + 2x M.2 NVMe – 1x 2.5GbE, 1x 1GbE – DSM 7.x – BUY HERE

The Synology DS425+ is a 4-bay NAS designed to serve as an entry point into Synology’s DSM ecosystem, offering a balance between hardware efficiency and access to a mature, enterprise-grade operating system. It runs on the Intel Celeron J4125 processor, a quad-core chip with a base frequency of 2.0GHz and a burst frequency of 2.7GHz. The system ships with 2GB of DDR4 non-ECC memory, expandable up to 6GB, and supports both 3.5″/2.5″ SATA drives and two M.2 NVMe SSDs for caching or storage volumes. For networking, it includes one 2.5GbE port and one standard 1GbE port, giving users some flexibility depending on their switching infrastructure.

DSM (DiskStation Manager) remains one of the most advanced NAS operating systems available, offering built-in apps for file management, media streaming, surveillance, and virtualization. Synology Hybrid RAID (SHR) is supported for flexible storage management, along with Btrfs file system benefits such as snapshots and data integrity checks. The DS425+ is part of Synology’s 2025 refresh lineup, which enforces stricter compatibility with Synology-branded drives. Users should confirm drive support in advance, particularly if planning to reuse existing disks. Despite these limitations, for users seeking reliability, security features, and long-term OS support, the DS425+ remains a strong choice at the $499 price point.

The NAS market under $499 in mid-2025 presents a broad spectrum of options tailored to different storage priorities and technical requirements. Whether you’re looking for high-capacity traditional RAID storage, SSD-focused performance, or a feature-rich operating system, there are viable choices within this price bracket. The UniFi UNAS Pro stands out as a pure storage appliance with 10GbE connectivity and seven bays, suited for high-throughput archival or backup scenarios. Meanwhile, the UGREEN DXP4800 and LincStation N2 offer hybrid and full-flash storage respectively, with both systems supporting modern features like Docker, virtualization, and optional third-party OS deployment. For those focused on user-friendly software ecosystems and long-term support, Synology’s DS425+ remains a leading contender, albeit with stricter drive compatibility requirements. On the other hand, the TerraMaster F4 SSD delivers compact all-SSD storage with high-speed 5GbE networking and a growing feature set in TOS, including AI photo management and multimedia tools. All five models require user-supplied storage media and, in some cases, benefit from user familiarity with setup or configuration processes. Ultimately, the best choice depends on how much weight you place on performance, expandability, software polish, and overall system control within this tightly priced segment.

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UniFi New NAS Rumours – Everything We Know

Duing the UniFi World Conference event (the UWC 2025 expo event that took place in several places around the world over a week in May) the brand took the opportunity to share a huge amount of information about their roadmap for hardware and software in 2025 (and 2026!) and although there was a lot of information about cameras, switches, integrations and improvements – the big, BIG detail that emerged that got my attention was that the UNAS series of NAS devices is rumoured to be getting several portfolio additions over the course of the next 18+ Months! All of this was seemingly shared behind closed doors, with photography and video prohibited during the presentations (with choice projects by the brand like these limited to keynote ‘on stage’ presentations) and not available for general access and sharing on the show floor.

However, ALOT of the information shared was then discussed at length on forums and community sites across the internet (unsurprisingly predominantly on Reddit more than most – shocker I know). Because of this, we have a great deal of rumoured, shared and near-confirmed information about what the brand is planning for the soon to be growing UNAS series of devices – including a potentially dedicated M.2 NVMe SSD flash devices, Enterprise grade ZFS Rackmount system (XG NAS?) and even more entry level desktop solutions in 2 and 4 Bay SATA.

There is a lot to get to and I think we will likely see granular and gradual updates to all of these solutions as time wears on, so I wanted to create this article to add shared info and leaks as they appear online. You can get notifications and alerts on this page by subscribing at the bottom of the article.

IMPORTANT – Regardless of how solid/rumoured any of the UniFi UNAS systems that are detailed on this page are – do NOT be complacent about your data and backups! If you need a backup solution right now/soon, do not ‘hold out’ for these devices, as no device will ever be worth the danger of your data being lost (power lose resulting in a raid failure, data corruption, accidental deletion..need I go on?). So, if you like the sound of UniFi and their products, and the UNAS from UniFi sounds like it meets your needs, it is still available RIGHT NOW for just $499 HERE – It is a 7x SATA Half-Depth Rackmout NAS with 10GbE and a comprehensive data management software in UniFi Drive. You can watch my review HERE and my 6 Months Later update on it HERE.

Here is a list of Sources on Reddit that detail what was observed at Unifi World Conference 2025 with regard to Network Attached Storage:

Which UniFi UNAS Devices Are Rumoured for 2025 and 2026?

16th June 2025 Updated

Below are the details we know so far (some details need further verification and confirmation, indicated appropriately) that we are aware of so far. Keep in mind (IMPORTANT) that these drives are massively ‘TBC’, so alongside potential name changes it is also possible that they may not arrive at all – as UniFi might change their mind based on market research about the need for a given device! Additionally, sometimes information online is contradictory to other information (eg the larger and smaller scale NAS system and a potential Pro XG system might well be the same device!), so do not treat this information as set in stone! Let’s break down each entry:

>>>>> IMPORTANT – IMAGES FOR GUIDANCE ONLY <<<<<

2 Bay Entry-Level HDD NAS

The UNAS Pro, although popular, is none the less quite large for much smaller user deployments – so if UniFi was to really stretch it’s muscles into the world of NAS, it would come as no surprise that they would provide more entry/small-footprint devices. So, the oft mentioned 2 Bay UNAS would be desirable, but also UniFi’s most compact HDD system to date, targeting home and SOHO users looking for simple backup or file-sharing functionality. No confirmation or detail on the shared information on the hardware profile (one can imagine an ARM base and 2-4GB of memory – but it’s all very ‘TBC’) and 2.5GbE connectivity. 2 drives would give precious little bandwidth for 10GbE to even be worth the time of day, even with SATA SSDs.

Specification	Details
Bays	2 x 3.5” HDD
Storage Type	SATA HDD
Software	UniFi Drive 3.0
Features	Entry-level NAS, ideal for backups
Status	Confirmed Seen at UWC2025
Source(s)	Source 1, Source 3

An NVMe SSD NAS dedicated NAS for Creative Workflows

This proposed SSD focused NAS moves away from spinning disks in favor of M.2 NVMe SSD slots, focusing on silent, high-performance workflows for media creators or prosumers. This compact unit maintains a passive cooling design and leverages Drive 3.0’s new dynamic storage pool system to balance protection and performance. It’s intended for those needing faster I/O than HDDs can provide without the size or noise of a rackmount. if this ends up coming out, is would be INCREDIBLY popular (given M.2 SSD prices are now only around 2x more than HDD, with a 4TB M.2 NVMe SSD in both Gen3 and Gen4 hitting just $200+, and WD Red and Seagate Ironwolf 4TB HDDs around the $89-99 mark)

Specification	Details
Bays	Unknown – Possibly 4x M.2 NVMe
Storage Type	PCIe SSD (M.2)
Software	UniFi Drive 3.0 (NVMe pool optimization)
Features	High-performance SSD storage, silent design
Status	Confirmed Seen at UWC 2025
Source(s)	Source 1, Source 3

4 Bay Desktop-Grade HDD NAS

This would deliver a more durable 4-bay solution with a desktop form factor, designed for small business environments or tech-savvy users. It combines the flexibility of 3.5″ HDDs with the enhanced features of UniFi Drive 3.0, including smarter snapshots and storage pools. Compared to the standard UNAS 2-bay discussed solution, this model would offer better RAID options, as well as performance potential (even in a RAID 5). Nevertheless, if/when this comes around, expect modest hardware under the hood!.

Specification	Details
Bays	4 x 3.5” HDD
Storage Type	SATA HDD
Cooling	Active fan (almost certainly!)
Software	UniFi Drive 3.0
Features	Mid-range performance, desktop NAS
Status	Confirmed Seen at UWC 2025
Source(s)	Source 1, Source 3

A ‘Proper’ 4 Bay and 8 Bay Rackmount NAS

Alongside the already released 7 Bay UNAS Pro, there is talk of a 4 Bay and 8-bay rackmount NAS aimed at larger deployments such as offices, branch networks, or video surveillance environments as a storage target for UniFi Portect perhaps. Built to handle RAID 6 (rolling ut in the latest UniFi NAS OS and Drive updates) and large-scale storage pools, it includes business-class hardware for redundancy and expandability. Its release aligns with Ubiquiti’s push into more scalable data solutions under the UniFi Drive 3.0 future framework.

Specification	Details
Bays	4 and 8 x 3.5” HDD
Storage Type	SATA HDD
Cooling	Likely Dual fan or rack-grade cooling
Software	UniFi Drive 3.0
Features	RAID 6 support
Status	Confirmed, Seen at UWC 2025
Source(s)	Source 1, Source 3

An Enterprise ZFS Appliance – THIS IS WHERE IT GETS GOOD!

Although the existing UNAS Pro NAS system runs on an BTRFS foundation, there was multiple references and rumours to UniFi’s first foray into ZFS-based NAS systems and appears to be targeted at enterprise environments requiring snapshot-based backup, inline compression, and greater control over storage topology. Very few hardware specifics have been shared, and it is unclear whether this is a completely separate physical unit or a software SKU atop a Pro-series device. I will be interested to see if, if this arrives, how they will migrate the existing UNAS/Drive/NAS OS appliances onto this ZFS base – as well as whether it will benefit from the inline and native performance/integrity benefits of ZFS!

Specification	Details
Bays	TBD
Storage Type	ZFS pools (likely mixed HDD/SSD)
Cooling	Likely 2 stage rackmount active cooling
Software	ZFS OS (Unconfirmed re:UniFi Drive 3.0)
Features	Snapshots, compression, enterprise storage, in-line ZFS benefits
Status	Confirmed (via software roadmap) at UWC 2025
Source(s)	Source 3, Source 4

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We use affiliate links on the blog allowing NAScompares information and advice service to be free of charge to you. Anything you purchase on the day you click on our links will generate a small commission which is used to run the website. Here is a link for Amazon and B&H. You can also get me a Ko-fi or old school Paypal. Thanks! To find out more about how to support this advice service check HERE   If you need to fix or configure a NAS, check Fiver   Have you thought about helping others with your knowledge? Find Instructions Here  

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Or support us by using our affiliate links on Amazon UK and Amazon US