UGREEN DH4300 PLUS vs UniFi UNAS 4 – Which Should You Buy?

The UniFi UNAS 4 and the UGREEN DH4300 Plus are being compared because they currently occupy a very similar part of the 4-bay NAS market, with both systems targeting buyers who want a relatively affordable turnkey storage solution with 2.5GbE connectivity, modern desktop design, and a lower entry price than many traditional NAS brands. On paper, they are close enough in price to be direct alternatives, but in practice they approach NAS deployment very differently. The UniFi UNAS 4 is built around tight integration with the wider UniFi ecosystem and focuses primarily on straightforward storage, backup, and remote file access, whereas the UGREEN DH4300 Plus is designed as a broader standalone NAS platform with more memory, a more powerful ARM processor, HDMI output, and a wider range of applications and services. That makes this comparison relevant not just because of the hardware and price overlap, but because each system reflects a different idea of what an entry to mid-range 4-bay NAS should be in 2026.

UniFi vs UGREEN NAS – Brand vs Brand

Before I dig into which of the DH4300 or UNAS 4 is best for you, it is worth highlighting again that these are two comparatively new players in the NAS scene (compared with long time multi-decade vetrans such as Synology, QNAP, Asustor and Terramaster), so let’s talk about their priorities and focus at a brand level. Both UGREEN and UniFi have entered the NAS sector from distinct starting points and continue to move in different directions, each targeting a particular type of user. UniFi’s UNAS series delivers consistency, predictable performance, and dependable integration with the broader UniFi ecosystem. Its software is stable, lightweight, and well-suited to users who prioritize straightforward storage management, reliable data handling, and unified control across routers, switches, and surveillance systems. While the hardware is limited to fixed ARM configurations and non-expandable memory, it is efficient, quiet, and designed for continuous operation with minimal maintenance. For organizations already invested in UniFi infrastructure, the UNAS systems provide a logical expansion that keeps management centralized and operational risk low. However, their value depends heavily on ecosystem synergy; outside of that environment, the systems remain competent but relatively inflexible standalone NAS options.

UGREEN’s NASync platform, on the other hand, appeals to users seeking broader performance capability and independence. Its x86-based models, upgradable memory, and open software environment allow it to serve as a hybrid between NAS and compact server, capable of running applications, containers, and virtual machines alongside storage tasks. The design language is more suited to individual or small business use than datacenter deployment, but the hardware range—from ARM to Core i5—covers a far wider performance spectrum than UniFi’s. Software maturity continues to evolve quickly, with new features added frequently, and the systems provide extensive compatibility with third-party clients and backup services. The trade-off is that long-term reliability and enterprise-level security validation are still developing.

Ultimately, UniFi NAS suits users who already rely on UniFi’s networking ecosystem and value simplicity, predictability, and centralized management, while UGREEN NAS caters to those prioritizing flexibility, compute power, and open software capability. Both brands have lowered the entry barrier into reliable NAS ownership, but they embody opposing philosophies: UniFi focuses on integration and control, whereas UGREEN emphasizes capability and independence.

Why Buy UniFi NAS?

Why Buy UGREEN NAS?

Ecosystem Integration: Seamlessly integrates with UniFi Network, Protect, and Access systems, allowing unified management through a single controller interface. Centralized Management: Designed for administrators managing multiple UniFi sites or devices, providing consistent firmware, remote access, and monitoring from one dashboard. Reliable, Efficient Design: ARM-based architecture ensures low power draw, cool operation, and stable long-term performance with minimal maintenance. Enterprise-Grade Networking: Equipped with up to dual 10G SFP+ and 10GBase-T ports, plus USP-RPS redundancy for professional deployments. Proven Security Framework: Benefits from Ubiquiti’s mature network security infrastructure, signed firmware updates, and NDAA-compliant hardware.

Superior Hardware Performance: Offers a full range from ARM to Intel Core i5 CPUs, with upgradable RAM, NVMe storage pools, and optional PCIe expansion. Versatile Software (UGOS Pro): Supports Docker, virtual machines, AI photo indexing, and multi-platform backups out of the box. All-in-One Standalone System: Functions independently without relying on an external ecosystem, ideal for users wanting a complete server in one unit. Advanced Connectivity: Includes 2.5 GbE and 10 GbE networking, USB 4/Thunderbolt 4, and support for direct-attached workflows like video editing or large-file transfer. Rapid Development and Updates: Frequent firmware releases continually add new features, broader hardware support, and improved backup and security options.

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UGREEN DH4300 vs UniFi UNAS 4 – Design and Storage

From a physical design perspective, these 2 NAS systems take very different approaches. The UniFi UNAS 4 has a taller, narrower chassis with a more vertical layout, while the UGREEN DH4300 Plus uses a more cubic desktop design that will look more familiar to buyers coming from Synology, QNAP, or Asustor hardware. The UniFi system is also available in black or white, which gives it a more deliberate visual identity within the wider UniFi product range, whereas the UGREEN keeps to a more conventional single-finish enclosure. In both cases, the chassis material is primarily plastic, so neither is especially premium in material terms, but each is clearly trying to prioritize compactness and low manufacturing cost rather than metal construction.

The drive arrangement is also notably different. The UniFi UNAS 4 places its 4 SATA bays in the base of the chassis, with the drives inserted from underneath, while the UGREEN DH4300 Plus uses a top-loaded vertical bay arrangement hidden under a removable outer shell. Neither system uses a particularly enterprise-focused tray design, and neither is really built around frequent hot-swap use in the same way as more expensive rackmount or prosumer NAS systems. That said, the UniFi trays are easier to describe as straightforward click-in drive carriers, while the UGREEN trays feel more budget-oriented in construction and do not leave the same impression of robustness as more established NAS brands.

In storage flexibility, the UniFi has the more ambitious configuration. Alongside its 4 SATA bays, it also includes 2 dedicated M.2 NVMe slots for SSD cache. That gives it an advantage in hybrid storage architecture, since the hard drives can be used for capacity while the NVMe media handles read and write cache duties. The UGREEN DH4300 Plus does not include M.2 storage slots, so any SSD deployment has to consume one or more of the main SATA bays, which reduces total storage capacity. At the same time, UniFi currently limits those NVMe bays to cache use rather than general storage pools, so the practical advantage is still narrower than the raw hardware layout suggests.

The 2 brands also differ in RAID and storage management philosophy. The UGREEN supports a broader list of RAID modes, including JBOD, Basic, RAID 0, RAID 1, RAID 5, RAID 6, and RAID 10, which gives it more deployment flexibility for different user priorities around performance, redundancy, or simple linear storage. The UniFi platform supports RAID 5, RAID 6, and RAID 10, but its overall storage structure is more controlled and less flexible, with a stronger focus on a simplified single storage pool approach. For buyers who want fewer decisions and a cleaner setup process, that may be acceptable, but for users who want more granular control over how storage is arranged, the UGREEN is less restrictive.

In pure storage potential, the UGREEN is also easier to quantify because it officially supports up to 128TB across 4 bays using 32TB drives, whereas UniFi focuses more on supported drive compatibility and cache pairing than on headline raw capacity figures. The UniFi does have the practical advantage of SSD caching built in, which can improve responsiveness in repeated access and write-heavy workloads, but the UGREEN has the simpler storage proposition overall and does not tie part of its internal design to optional accessories such as UniFi’s separate M.2 tray approach. As a result, the UniFi has the more distinctive and technically layered storage design, while the UGREEN has the more conventional and broadly flexible one.

UniFi UNAS4 vs UGREEN DH 4300 – Internal Hardware & Connections

Internally, the UGREEN DH4300 Plus has the stronger hardware specification. It uses an 8-core Rockchip ARM processor based on Cortex-A76 and Cortex-A55 cores running at up to 2.0GHz, alongside 8GB of LPDDR4X memory and 32GB of eMMC for the system. By comparison, the UniFi UNAS 4 uses a quad-core ARM Cortex-A55 processor at 1.7GHz with 4GB of memory. Both systems are clearly built around low-power ARM architecture rather than x86 processing, but the UGREEN has the more capable platform on paper and offers more headroom for multitasking, background services, and broader software functionality.

The UniFi system does, however, counter with a more unusual internal layout. In addition to its 4 SATA bays, it includes 2 M.2 NVMe slots dedicated to SSD cache, which gives it a storage acceleration feature that the UGREEN does not match natively. For users dealing with repeated file access, background synchronization, or burst-heavy write activity, that cache support has practical value. The UGREEN relies entirely on its 4 SATA bays for storage media, so although its CPU and memory are stronger, its internal storage architecture is less advanced in terms of tiered storage.

External connectivity is broader on the UGREEN. It includes 1x 2.5GbE LAN port, HDMI output at up to 4K 60Hz, 1x front USB 3.2 Gen 1 port at 5Gb/s, and 2 additional USB-A 5Gb/s ports. The UniFi UNAS 4 is much more limited, offering 1x 2.5GbE RJ45 port and 1x 5Gb/s USB-C port. This narrower I/O profile reflects the fact that UniFi has positioned the UNAS 4 as a focused network storage appliance rather than a multi-role NAS for media output, peripheral attachment, or application expansion. In direct hardware terms, the UGREEN is better equipped for users who expect more than basic file serving.

Power and deployment also separate these 2 systems. The UniFi UNAS 4 supports PoE+++ and includes a 90W PoE adapter, which allows both power and network connectivity over a single cable in supported environments. That is unusual in this part of the NAS market and makes it particularly relevant for users already invested in UniFi switching infrastructure or those deploying hardware in locations where simplified cabling matters. The UGREEN uses a more conventional external power arrangement, which is less distinctive but also less dependent on network infrastructure choices. Therefore, the UGREEN has the stronger internal compute hardware and broader physical connectivity, while the UniFi has the more specialized deployment advantage.

UGREEN DH4300 vs UniFi UNAS 4 – Software & Services

The biggest difference between these 2 NAS systems is not the chassis or the processor, but the software scope. The UniFi UNAS 4 runs UniFi Drive and is clearly built around a narrower storage-first brief, with support for SMB, NFS, snapshots, file encryption, Time Machine, share links, user groups, remote backup, cloud backup targets, and client apps. It covers the main NAS fundamentals expected by home users and small offices, but it does so within a more controlled environment that places simplicity and consistency ahead of feature breadth. The UGREEN DH4300 Plus, running UGOS Pro, aims much wider and includes not only file serving and backup tools, but also multimedia applications, container support, HDMI-based media playback, AI-assisted photo features, and broader service depth overall.

For pure storage management, UniFi Drive is cleaner and more focused, particularly for users who want the NAS to act primarily as private cloud storage, backup target, and centralized file repository. Its interface is built to align with the broader UniFi platform, and that gives it an advantage for users already running UniFi networking equipment and remote management tools. However, that same focus also means the UNAS 4 is less flexible as a general-purpose NAS. The UGREEN platform does not have the same ecosystem tie-in, but it operates more independently and gives the user more scope to use the system for different workloads beyond file storage.

Application support is where the gap becomes more obvious. The UGREEN DH4300 Plus supports Docker and has a noticeably broader service layer for media, backup, and user applications. That creates options for running third-party software, home media tools, and more customized services that simply are not part of the UniFi approach. The UniFi UNAS 4 does not currently try to compete in that area and instead presents itself as a dedicated NAS platform rather than an application host. For some users that will be a limitation, while for others it will be a benefit, because it reduces complexity and keeps the system centered on storage tasks rather than mixed workload experimentation.

In practical terms, the software decision comes down to whether the buyer values depth or focus. The UGREEN DH4300 Plus offers the broader NAS software experience and is better suited to users who want more features, more applications, and more ways to extend the system over time. The UniFi UNAS 4 offers the more controlled and storage-specific platform, with the clearest advantage appearing when it is deployed inside an existing UniFi environment. As a result, the UGREEN software stack is more versatile, while the UniFi software stack is more specialized.

UniFi UNAS 4 vs UGREEN DH4300 NAS – Conclusion & Verdict

Taken as a whole, these 2 systems are aimed at a similar buyer in price terms, but they are not trying to solve the same problem in the same way. The UniFi UNAS 4 is a more specialized NAS that focuses on storage, backup, remote access, and integration within the UniFi ecosystem. The UGREEN DH4300 Plus is a broader standalone NAS that gives the user more hardware resources, more software flexibility, and a wider overall role in the network. That difference matters more than the relatively small gap in price, because in day to day use they will appeal to different priorities. The UniFi UNAS 4 makes more sense for buyers who already use UniFi switches, gateways, and management tools, or for those who specifically want a NAS that stays focused on file storage instead of trying to become a media server or container host. Its built in NVMe cache support and PoE+++ deployment give it some useful differentiators, and its simpler software scope will suit users who want a more controlled experience. However, outside of the UniFi ecosystem, some of its strengths become less important, while its limitations in application support, connectivity, and hardware power become harder to ignore.

The UGREEN DH4300 Plus is the better fit for users who want a more traditional all-round NAS. It has the stronger CPU, more memory, broader external connectivity, more RAID options, HDMI output, Docker support, and a software platform with more room to scale into multimedia, backup variety, and third party services. It is the more capable choice for mixed home and small business use, particularly for buyers who are not tied to any specific network brand and want their NAS to handle more than just centralized storage. It is also the easier system to recommend to users comparing it against other established 4-bay NAS platforms in the same price bracket. So, in direct usage terms, the UniFi UNAS 4 is better for UniFi-centric deployments, cleaner storage-first use, and buyers who value NVMe caching and PoE-based installation. The UGREEN DH4300 Plus is better for users who want stronger hardware, more software features, better connectivity, and a wider long term usage profile. If the question is which is the better pure value NAS for the largest number of users, the UGREEN DH4300 Plus is the stronger overall option. If the question is which fits better into a UniFi-led network and a simpler storage-focused role, the UniFi UNAS 4 is the more appropriate choice.

Buy the UGREEN DH4300 on Amazon @399	Buy the UniFi UNAS 4 on The UniFi Store for $379

 

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UniFi UNAS Pro 4 vs Pro vs Pro 8 NAS – WHICH ONE SHOULD YOU BUY?

Within UniFi, the UNAS line is positioned as a straightforward, storage focused, turnkey NAS platform that fits into the same single pane management style as the rest of the ecosystem, prioritizing file storage, sharing, snapshots, and backup workflows over broader server style expandability. In this 3 way comparison, the UNAS Pro (7 bay, Nov 2024), UNAS Pro 8 (8 bay, Nov 2025), and UNAS Pro 4 (4 bay, Feb 2026) look similar on the surface, but they target different deployment constraints and ceiling limits in rack depth, storage scalability, cache options, memory headroom, network redundancy, and power design. Two of the units (Pro 4 and Pro 8) add M.2 NVMe cache support and higher availability 10GbE networking than the original Pro, while the Pro 8 also pushes furthest on RAM capacity and physical redundancy expectations for a rack install.

	UNAS Pro (7 Bay, $499)	UNAS Pro 4 (4 Bay, $499)	UNAS Pro 8 (8 Bay, $799)

At the same time, the lineup is notable for pricing that stays lower than many established rackmount NAS competitors at comparable connectivity, with both the UNAS Pro and UNAS Pro 4 landing at $499, and the UNAS Pro 8 stepping up to $799 for more bays, more memory, and more network paths. The practical decision usually comes down to whether the priority is maximum bays at the lowest buy in, a tighter 1U footprint with newer cache and dual 10GbE links, or a higher ceiling platform with the strongest long term headroom in bays, RAM, and connectivity for users who expect growth rather than a fixed storage target.

IMPORTANT – It is worth highlighting that all three UNAS solutions include the same software and updates in the UniFi Drive and NAS OS services. Alongside the client tools (eg Identity Endpoint and File/Folder services remotely) and can be easily integrated into an existing Ubiquiti/UniFi network landscape. HOWEVER crucially, it is not ‘mandotory’ – you can run any of the UNAS Pro systems completely ‘offline’ (i.e LAN only) and there is no need to already have an existing UniFi network (existing 3rd party network landscapes work perfectly fine) and you also do not need to use/register any kind of UI.com/Ubiquiti account to setup the device.

UniFi UNAS Pro 4 vs Pro vs Pro 8 NAS – Design

At a chassis level, the lineup splits into 2U and 1U designs, and that difference shapes how each unit fits into smaller racks and shallow cabinets.

The UNAS Pro is the shortest depth of the 3, while the UNAS Pro 4 and UNAS Pro 8 extend further back, which matters once you account for cable bend radius and rear clearance.

For compact wall racks and shorter cabinets, the older UNAS Pro tends to be easier to accommodate purely on physical depth, even before you consider anything about performance or features.

UNAS PRO 8 480MM DEPTH	UNAS PRO 325MM DEPTH
UNAS PRO 4 400MM DEPTH	DON’T FORGET RAILS!!!

The UNAS Pro also stands apart on the front panel experience, because it includes a 1.3″ touchscreen that can surface live status information without needing to log into the UI. That is not present on the UNAS Pro 4 or UNAS Pro 8, which lean into a more conventional rack appliance faceplate focused on bay access and basic indicators. In day to day use, the screen is mainly a convenience feature for quick checks and basic local interaction, rather than something that changes how the system is deployed.

Another practical design difference is port placement philosophy. The UNAS Pro places its primary network connectivity on the front, while the UNAS Pro 4 and UNAS Pro 8 move connectivity to the rear, matching the typical layout most rackmount NAS systems follow. Front facing ports can reduce visible cabling in front of a rack and shorten patch runs in some UniFi heavy layouts, but rear mounted ports are generally easier to route cleanly in deeper cabinets with rear cable management.

Power implementation also affects the physical serviceability profile of each unit. The UNAS Pro 8 uses hot swappable power modules, which changes how you handle failure or planned maintenance compared with the fixed internal power approach used by the UNAS Pro and UNAS Pro 4.

All 3 use a steel enclosure and ship as purpose built rack devices rather than desktop conversions, but the UNAS Pro 8 is the one that most closely matches what many buyers expect from a higher end rack appliance in terms of field replacement for key physical components.

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UniFi UNAS Pro vs Pro 4 vs Pro 8 NAS – Storage

The most obvious storage difference is the bay count and what that does to capacity planning. The UNAS Pro provides 7 front accessible 2.5 inch or 3.5 inch bays in a 2U chassis, the UNAS Pro 4 offers 4 bays in a 1U chassis, and the UNAS Pro 8 increases that to 8 bays in 2U. If you expect to grow into larger pools over time, the 7 bay and 8 bay models give more headroom before you are forced into drive replacements, a second NAS, or a new storage tier. With no official expansion chassis support referenced here, the physical bay count is effectively the ceiling for each system.

The UNAS Pro 4 and UNAS Pro 8 add 2 M.2 NVMe slots intended for SSD caching, while the UNAS Pro does not include NVMe slots. This changes how you can approach mixed workloads, because cache can reduce latency for repeated small file access and help smooth bursts of writes, depending on how the platform applies caching. It does not change the underlying reality that the main capacity tier is still the SATA bay set, but it gives the Pro 4 and Pro 8 a path to improve responsiveness for specific access patterns without committing to full SSD storage across all bays.

RAID flexibility also varies, not in the list of RAID levels available, but in how storage can be organized. All 3 units support RAID 5, RAID 6, and RAID 10, but the UNAS Pro 4 is listed as supporting a single RAID group, while the UNAS Pro and UNAS Pro 8 are listed with multiple RAID groups. In practice, the single group limitation matters if you prefer separating workloads or isolating different retention policies into distinct pools, rather than placing everything into 1 volume. On the larger models, multiple groups give more options for structuring storage around different priorities, such as performance versus redundancy, or shared storage versus dedicated project space.

Operational features tied to storage protection are also not identical across the range. Hot spare support is listed on the UNAS Pro and UNAS Pro 8, but not on the UNAS Pro 4, which affects how you plan for unattended recovery after a drive failure. All 3 support snapshots, file encryption, share links, Time Machine backup, and cloud and network backup targets, which makes baseline data protection and recovery workflows broadly consistent regardless of bay count.

The larger differentiation is therefore less about whether core protection features exist and more about how much flexibility you have in pool layout and drive management within the limits of each chassis.

All 3 systems are built around a quad core ARM Cortex A57 platform, but they are not configured identically. The UNAS Pro runs the Cortex A57 at 1.7 GHz, while the UNAS Pro 4 and UNAS Pro 8 are listed at 2.0 GHz. In day to day use, this tends to show up less as a dramatic jump in peak throughput and more as extra headroom when the system is handling several background jobs at once, such as indexing, snapshots, and multi user access, while still servicing file activity. The architecture choice is aligned with lower draw compared with typical x86 NAS hardware, but it also sets a ceiling on heavier compute workloads that some buyers associate with higher end NAS platforms.Memory is where the split is clearer. The UNAS Pro and UNAS Pro 4 ship with 8 GB, while the UNAS Pro 8 steps up to 16 GB. The practical impact is less about basic file sharing and more about how much concurrent activity the system can absorb before responsiveness drops, particularly when you add more users, larger file operations, more snapshot activity, and cache related behavior on models that support it. None of these systems are positioned as memory expandable platforms in the provided specifications, so the installed capacity is effectively the long term limit.

Power delivery and serviceability differ meaningfully between the range. The UNAS Pro and UNAS Pro 4 use internal AC to DC power supplies with an additional USP RPS DC input for redundancy, and their overall platform power limits are lower, matching their smaller scale.

The UNAS Pro 8 uses hot swappable power modules and is designed to support more demanding configurations, reflected in the higher maximum power consumption and the larger drive power budget. This does not automatically translate into higher idle power, but it does indicate how much overhead the chassis is designed to tolerate when fully populated and under sustained activity.

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UniFi UNAS Pro 4 vs Pro vs Pro 8 NAS – Ports and Connections

Across the 3 systems, the shared theme is 10 GbE as the primary path for file access, but the implementation differs. The UNAS Pro provides a single 10G SFP+ port plus a 1 GbE RJ45 port, which typically ends up used either for management traffic or as a slower access fallback. The UNAS Pro 4 shifts to a dual 10G SFP+ layout, giving more flexibility for link aggregation or failover planning, even if the practical benefit depends on the storage configuration and client support. The UNAS Pro 8 goes further with 2x 10G SFP+ and adds a 10 GbE RJ45 port that supports multi speed negotiation, which makes it easier to drop into networks that are already built around copper 10 GbE.

Port placement is also part of the decision, because the UNAS Pro uses front mounted networking, while the UNAS Pro 4 and UNAS Pro 8 keep network connections on the rear. Front mounted ports can simplify short patch runs in racks that are set up around front facing switching, while rear mounted ports follow the more common rack NAS convention and can be cleaner in racks that route cabling at the back. None of the 3 is positioned as a platform for network expansion cards, so what you buy is the long term connectivity ceiling.

In day to day operation, the multi port models are mainly about resiliency and network design options rather than guaranteeing linear scaling for a single user. You can plan for redundancy across switches, use bonding where your environment supports it, or segment traffic patterns in a more controlled way.

The UNAS Pro 8 is also the only model here with 10 GbE available on both SFP+ and RJ45 in the base hardware, which reduces the need for media converters or additional transceiver planning if your network is not SFP+ centric.

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UniFi UNAS Pro 4 vs Pro 8 vs Pro NAS – Price and Value

At list pricing, the UNAS Pro and UNAS Pro 4 sit at the same $499, but they are selling different priorities. The UNAS Pro concentrates its value in raw bay count and a shorter 2U chassis, trading away NVMe cache support and additional 10 GbE links to keep the platform simple. The UNAS Pro 4 is priced the same while reducing the HDD bay count and moving to a 1U chassis, but it adds 2x NVMe cache slots and a second 10G SFP+ port, positioning it more as a “small but fast access” rack NAS rather than a capacity first box.

The UNAS Pro 8 steps up to $799 and is priced like a higher tier option, but the spec sheet shows where that uplift is meant to land: more drive bays than either $499 model, NVMe cache capability like the Pro 4, more total 10 GbE ports, and a jump to 16 GB memory. It is also the only one of the 3 with a 10 GbE RJ45 port alongside SFP+, which can reduce friction in mixed copper and fiber environments. If the goal is to keep the same platform longer term, the Pro 8 is the only one here with both the capacity headroom and the memory ceiling to match it.

Using the simplified “price per bay” and “price per element” approach, the headline result is that the Pro 8 looks strongest once you count all the included hardware features rather than only the number of drive bays. The UNAS Pro has the lowest cost per bay because it is a 7 bay system at the same price as the 4 bay model, but the Pro 4 catches up when the NVMe slots and dual 10 GbE are treated as part of the value calculation. The Pro 8 is not the cheapest upfront, but it ends up close to the Pro 4 on cost per bay and is the lowest on cost per element because it stacks more of the “platform” features in one chassis.

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UniFi UNAS Pro 8 vs Pro vs Pro 4 NAS – VERDICT

The UNAS Pro 4, UNAS Pro, and UNAS Pro 8 are close enough in naming to look like simple capacity steps, but they are positioned more like 3 different takes on the same UniFi Drive appliance idea. The UNAS Pro is the most capacity oriented at $499, giving 7 bays in a shorter depth 2U chassis with a built in 1.3 inch touchscreen and a straightforward port layout that suits some front of rack workflows. The UNAS Pro 4 shifts the emphasis away from bay count and toward “newer platform features” at the same $499 price, combining a 1U form factor with 2x 10G SFP+ and 2x NVMe cache slots, at the cost of a deeper chassis and fewer total drive bays. The UNAS Pro 8 is the most complete hardware package in the lineup, adding more bays, NVMe cache, more total 10 GbE connectivity including 10 GbE RJ45, and 16 GB memory, while also being the only one of the 3 to use hot swappable power modules. None of the 3 supports an official expansion shelf approach, so the bay count you buy on day 1 is effectively the long term ceiling unless you plan a separate NAS later.

Choosing between them mostly comes down to which ceiling matters first in your deployment: total bays, total network options, or overall platform headroom. If you want the most bays at $499 and the chassis depth is a priority, the UNAS Pro remains the obvious pick, with the tradeoffs being no NVMe cache path and a simpler network layout than the newer units. If you want the $499 option that aligns most with modern expectations for a small rack NAS, the UNAS Pro 4 has the cleanest argument, because dual 10G and NVMe cache can matter more than extra bays in smaller, faster working sets, even if those cache slots are not usable as standalone storage pools. If you are planning for longer retention cycles, heavier multi user access, or you simply want the most complete feature set in a single chassis, the UNAS Pro 8 is the one that most clearly justifies its higher price, particularly once memory, network flexibility, and the power module design are considered together. The main limitation across the lineup is that the ARM platform and fixed memory approach sets expectations about the long term performance ceiling, but within that constraint, the decision is primarily about how you want the hardware budget divided between capacity, connectivity, and overall platform resources.

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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

Need Advice on Data Storage from an Expert?

Finally, for free advice about your setup, just leave a message in the comments below here at NASCompares.com and we will get back to you. Need Help? Where possible (and where appropriate) please provide as much information about your requirements, as then I can arrange the best answer and solution to your needs. Do not worry about your e-mail address being required, it will NOT be used in a mailing list and will NOT be used in any way other than to respond to your enquiry. [contact-form-7] TRY CHAT Terms and Conditions   Alternatively, why not ask me on the ASK NASCompares forum, by clicking the button below. This is a community hub that serves as a place that I can answer your question, chew the fat, share new release information and even get corrections posted. I will always get around to answering ALL queries, but as a one-man operation, I cannot promise speed! So by sharing your query in the ASK NASCompares section below, you can get a better range of solutions and suggestions, alongside my own.

WE LOVE COFFEE