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.

Category	Specification
Form Factor	Rackmount NAS (2U)
Dimensions	442.4 x 480 x 87.4 mm (44.24 x 48.0 x 8.74 cm)
Weight	11.5 kg (25.35 lb)
Enclosure Material	SGCC steel
Mounting	Rack rails included
Drive Bays	8 x 2.5″/3.5″ SATA HDD/SSD
M.2 Support	2 x M.2 NVMe slots (2280/22110) via rear tray modules (sold separately)
RAID Support	RAID 0, 1, 5, 6, clustered RAID, Single Disk
Hot Swap	Supported
Max Drive Capacity	Tested up to 30 TB HDDs; UniFi-branded and third-party drives supported
CPU	Quad-Core ARM Cortex-A57, 1.7 GHz
Memory	16 GB LPDDR4 (non-upgradeable)
System Storage	~25.2 GB internal flash (likely 32 GB with over-provisioning)
Network Interfaces	2 x 10G SFP+, 1 x 10GbE RJ45 (multi-gig fallback to 5G/2.5G/1G/100M)
USB / Expansion	None
Power Method	Dual PSU bays, hot-swappable modules
Power Supply	2 x 550W AC/DC hot-swappable PSUs (1 included by default)
Max Power Budget	175W for drives
Max Consumption	200W
Cooling	Multiple system fans with active fan control
Management	UniFi OS web interface; Ethernet, Bluetooth 4.1 for setup
Software File System	Btrfs with snapshot support
Certifications	FCC, CE, IC; NDAA Compliant

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.

Category	Specification
Form Factor	Desktop NAS
Dimensions	135 x 129 x 223.7 mm (13.5 x 12.9 x 22.37 cm)
Weight	1.3 kg (2.85 lb)
Enclosure Material	Polycarbonate
Drive Bays	2 x 3.5″ SATA HDD
RAID Support	RAID 0, RAID 1, Single Disk
Hot Swap	Not supported (shared tray for both drives)
Max Drive Capacity	Confirmed support up to 30 TB HDDs
CPU	Quad-Core ARM Cortex-A55, 1.7 GHz
Memory	4 GB LPDDR4 (non-upgradeable)
System Storage	Internal flash for operating system
Network Interface	1 x 2.5 GbE RJ45 (PoE++ power + data)
USB Ports	1 x USB-C (5 Gbps, storage devices only)
Power Method	PoE++ (via 2.5 GbE port)
Power Supply	60W PoE++ injector included
Max Power Budget	52W for drives, 60W maximum system consumption
Cooling	Rear cooling fan with bottom intake vents, software fan control
Display	1.47″ colour LCM (status only, non-touch)
Noise Levels	~31–32 dBA idle, up to ~38 dBA under load
Thermal Range	CPU ~75–80°C under stress, 50–60°C idle/light use
Management	UniFi OS web interface, Ethernet, Bluetooth 4.1 for setup
Certifications	FCC, CE, IC; NDAA Compliant

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.

Category	Specification
Form Factor	Rackmount NAS (1U)
Drive Bays	4 x 2.5″/3.5″ SATA HDD/SSD
M.2 Support	2 x M.2 NVMe slots
RAID Support	RAID 0, 1, 5, 6, clustered RAID, Single Disk
Hot Swap	Supported
CPU	Quad-Core ARM Cortex-A57, 1.7 GHz
Memory	16 GB LPDDR4 (non-upgradeable)
System Storage	Internal flash for operating system
Network Interfaces	Expected 2 x 10G SFP+, 1 x 10GbE RJ45 (matching UNAS Pro 8, TBC)
Power Method	Dual PSU bays, hot-swappable modules
Power Supply	2 x hot-swappable AC/DC PSUs (1 included by default)
Cooling	Multiple system fans with front-to-rear airflow
Management	UniFi OS web interface; Ethernet, Bluetooth 4.1 for setup
Positioning	Compact 1U rackmount, same CPU/RAM as Pro 8, with redundancy support

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.

Category	Specification
Form Factor	Desktop NAS
Enclosure Material	Polycarbonate
Drive Bays	4 x 3.5″ SATA HDD
M.2 Support	2 x M.2 NVMe slots (for caching/tiered storage)
RAID Support	RAID 0, 1, 5 (dependent on bay usage)
Hot Swap	Not confirmed (likely similar tray design to UNAS 2)
CPU	Quad-Core ARM Cortex-A55, 1.7 GHz
Memory	4 GB LPDDR4 (non-upgradeable)
Network Interface	1 x 2.5 GbE RJ45 (PoE+++ power + data), possible secondary port (TBC)
USB Ports	1 x USB-C (5 Gbps, storage devices only)
Power Method	PoE+++
System Storage	Internal flash for operating system
Cooling	Rear fan with bottom intake, adjustable via UniFi OS
Management	UniFi OS web interface, Ethernet, Bluetooth 4.1 for setup
Positioning	Desktop equivalent to UNAS 2, scaled up with four bays and M.2 support

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.

Feature	UNAS Pro (2024)	UNAS 2	UNAS 4	UNAS Pro 4	UNAS Pro 8
Price	$499	$199	$379	$499	$799
Form Factor	Rackmount (2U)	Desktop	Desktop	Rackmount (1U)	Rackmount (2U)
Dimensions	Not confirmed	135 x 129 x 223.7 mm (13.5 x 12.9 x 22.37 cm)	TBC (similar scale, polycarbonate)	TBC (compact 1U rack)	442.4 x 480 x 87.4 mm (44.24 x 48.0 x 8.74 cm)
Weight	Not confirmed	1.3 kg	TBC (slightly heavier than UNAS 2)	TBC	11.5 kg
Enclosure Material	Metal (likely steel)	Polycarbonate	Polycarbonate	SGCC steel	SGCC steel
Drive Bays	7 x 2.5″/3.5″ SATA	2 x 3.5″ SATA	4 x 3.5″ SATA	4 x 2.5″/3.5″ SATA	8 x 2.5″/3.5″ SATA
M.2 NVMe Support	None	None	2 x M.2 NVMe	2 x M.2 NVMe	2 x M.2 NVMe
Hot Swap	Supported	Not supported (shared tray)	Likely limited (TBC)	Supported	Supported
Max Drive Capacity	> 20 TB confirmed	Up to 30 TB confirmed	Up to 30 TB expected	Up to 30 TB expected	Up to 30 TB confirmed
CPU	Quad-Core ARM Cortex-A57, 1.7 GHz	Quad-Core ARM Cortex-A55, 1.7 GHz	Quad-Core ARM Cortex-A55, 1.7 GHz	Quad-Core ARM Cortex-A57, 1.7 GHz	Quad-Core ARM Cortex-A57, 1.7 GHz
Memory	8 GB (early models)	4 GB LPDDR4 (non-upgradeable)	4 GB LPDDR4 (non-upgradeable)	16 GB LPDDR4 (non-upgradeable)	16 GB LPDDR4 (non-upgradeable)
System Storage	Internal flash (size not disclosed)	Internal flash	Internal flash	Internal flash	~25.2 GB internal flash (likely 32 GB with OP)
Network Interfaces	1 x 10GbE RJ45 (front-mounted)	1 x 2.5 GbE RJ45 (PoE++)	1 x 2.5 GbE RJ45 (PoE+++), possible 2nd port (TBC)	Expected: 2 x 10G SFP+, 1 x 10GbE RJ45	2 x 10G SFP+, 1 x 10GbE RJ45
USB Ports	None	1 x USB-C (5 Gbps, storage only)	1 x USB-C (5 Gbps, storage only)	None	None
Power Method	AC PSU (non-redundant)	PoE++ (via 2.5 GbE)	PoE+++	Dual PSU bays (hot-swappable)	Dual PSU bays (hot-swappable)
Power Supply	Integrated AC PSU	60W PoE++ injector included	PoE+++ injector/switch required	2 x hot-swappable PSUs (1 included)	2 x 550W hot-swappable PSUs (1 included)
Max Power Budget	Not published	52W for drives, 60W total	TBC (expected ~80–100W)	~150W (TBC)	175W for drives, 200W total
Cooling	Passive vents + fans, limited fan control (later patched)	Rear fan, bottom vents, fan control via OS	Rear fan with bottom intake, fan control	Front-to-rear airflow, multiple fans	Front-to-rear airflow, multiple fans
Display	Small LCD panel with system info	1.47″ colour LCM (status only)	TBC (likely same as UNAS 2)	None	None
Noise Levels	Moderate (rackmount fans)	~31–32 dBA idle, up to ~38 dBA load	Slightly higher than UNAS 2 (TBC)	Typical 1U fan noise	Adjustable, depends on drive/fan profile
Thermal Range	CPU ~70–80°C under load	CPU ~75–80°C stress, ~50–60°C idle	Similar to UNAS 2 (TBC)	~70–80°C CPU under load	CPU ~74–80°C, drives 38–47°C
Management	UniFi OS web interface, Ethernet	UniFi OS web interface, Ethernet, Bluetooth 4.1	UniFi OS web interface, Ethernet, Bluetooth 4.1	UniFi OS web interface, Ethernet, Bluetooth 4.1	UniFi OS web interface, Ethernet, Bluetooth 4.1
Software File System	Btrfs, snapshots (basic)	Btrfs, snapshots, backups	Btrfs, snapshots, backups	Btrfs, snapshots, clustered RAID	Btrfs, snapshots, clustered RAID
Certifications	FCC, CE (NDAA not confirmed)	FCC, CE, IC; NDAA compliant	FCC, CE, IC; NDAA compliant	FCC, CE, IC; NDAA compliant	FCC, CE, IC; NDAA compliant

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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:

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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.

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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)

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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!.

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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.

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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!

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