New Thunderbolt 5 NVMe Storage Solution Revealed – The OWC 4M2 Ultra

OWC has introduced the Express 4M2 Ultra at NAB 2026 as a compact 4 bay NVMe enclosure built around Thunderbolt 5. It is designed as a DIY storage solution for users who want to install their own M.2 SSDs and configure the enclosure for different RAID modes, including RAID 0, 1, 4, 5, 10, and JBOD. OWC positions it as a high performance option for media production, post production, and other bandwidth intensive workloads that benefit from fast external solid state storage.

The enclosure supports up to 4 NVMe M.2 drives in 2280 or 2242 formats and is rated for up to 6622MB/s in RAID 0 when paired with PCIe 4.0 or newer SSDs on Thunderbolt 5 systems. It also retains backward compatibility with Thunderbolt 4, Thunderbolt 3 on Mac, and USB4 hosts, though throughput is lower on 40Gb/s connections. Capacity starts with whatever drives the user installs, with support for up to 32TB in a single unit based on current 8TB SSD support, while additional units can be daisy chained for larger storage pools.

OWC Express 4M2 Ultra – Design & Storage

The Express 4M2 Ultra uses a compact aluminum enclosure with a vertical desktop form factor intended to keep its footprint relatively small. OWC states that the chassis is built from aircraft grade aluminum, which serves both as the structural housing and as part of the thermal design. The unit measures 12.3 cm tall, 11.7 cm long, and 6.0 cm wide, with a listed weight of 900 g.

Internally, the enclosure provides 4 drive bays for NVMe M.2 SSDs and supports both 2280 and 2242 form factors. It accepts single sided and double sided drives, though SSDs with integrated heatsinks are not supported. OWC specifies support for PCIe Gen 3 and later SSDs, with Gen 4 and newer drives recommended for higher performance. Each bay operates at PCIe 4.0 x1, and single drive performance is rated at up to 1600MB/s.

From a storage flexibility standpoint, the enclosure is aimed at users who prefer to source and install their own drives rather than buy a preconfigured array. That allows the capacity and performance profile to vary depending on the SSDs installed. With current 8TB drives, the maximum listed capacity is 32TB in a single enclosure, while future higher capacity drives could increase that figure without requiring a new chassis.

RAID support is handled in software rather than through a dedicated hardware RAID controller. The Express 4M2 Ultra supports RAID 0, 1, 4, 5, 10, and JBOD, with OWC highlighting SoftRAID as its main management option. This gives users a wider range of configuration choices depending on whether they prioritize throughput, redundancy, usable capacity, or a balance between those factors.

Thermal management is handled by a 40mm cooling fan with multiple speed thresholds tied to internal temperature. According to OWC’s listed profile, the fan remains off below 35°C, then ramps progressively from 40% to 100% as temperatures rise from 35°C to 55°C and above. The stated approach is to reduce unnecessary noise under lighter workloads while maintaining SSD performance during sustained transfers.

OWC Express 4M2 Ultra – Ports and Connections

The Express 4M2 Ultra uses Thunderbolt 5 as its primary host interface, with 1 USB C host port rated for up to 80Gb/s. OWC also lists support for USB Attached SCSI Protocol, and the enclosure is designed to work across Thunderbolt 5, Thunderbolt 4, USB4, and Thunderbolt 3 on supported Mac systems. In practice, that gives it a broader compatibility range than a Thunderbolt 5 only accessory, though maximum throughput depends on the bandwidth available from the connected system.

A second Thunderbolt 5 port is included for downstream connectivity. OWC states that this allows users to daisy chain up to 5 additional Thunderbolt devices, along with 1 USB peripheral, from the same connection path. The same port can also be used to connect additional Express 4M2 Ultra units, with OWC positioning that as a way to build larger storage volumes without treating each enclosure as an entirely separate destination.

Compatibility varies by platform and interface generation. On newer Thunderbolt 5 Macs and PCs, OWC rates the enclosure at up to 6622MB/s, while Thunderbolt 4 and USB4 systems are listed at up to 3200MB/s. Intel Macs with Thunderbolt 3 are rated up to 2800MB/s, and OWC notes that Thunderbolt 3 support is Mac only. No driver is required, and the enclosure is listed as compatible with macOS 14.x Sonoma, macOS 15.x Sequoia, macOS 26.x Tahoe, Windows 11, and Linux, with some features depending on OS version and connection type.

OWC Express 4M2 Ultra – Price and Release date

OWC has set the starting price of the Express 4M2 Ultra at $399.99 for the standard non SoftRAID version. A version bundled with SoftRAID is priced at $549.99. As a result, the enclosure enters the market as a premium DIY storage option rather than a low cost external SSD enclosure, with the final overall build cost depending heavily on the NVMe drives a buyer installs.

The company says the Express 4M2 Ultra is available for pre order now following its reveal at NAB 2026 in Las Vegas. OWC lists shipping for Q3 2026, so early buyers will still be waiting several months for general availability. That places the launch window firmly in the second half of the year, even though orders have already opened.

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New UniFi UDM Beast, Enterprise FG Core, Enterprise 100G and Enterprise S Revealed

At NAB 2026 in Las Vegas, Ubiquiti Inc. showcased a number of rackmount UniFi devices that have not yet been formally announced or released. These systems were presented alongside existing products, making it necessary to distinguish between current hardware and what appears to be forthcoming or experimental equipment. The devices observed represent a noticeable increase in port density, throughput capability, and overall positioning compared to the current UniFi lineup.

Four specific devices stand out from this showcase: the UniFi Dream Machine Beast, the Enterprise Fortress Gateway Core, the Enterprise 100G switch, and the Enterprise S PoE switch. Based on available observations and supporting information, these products appear to form a cohesive expansion of the UniFi ecosystem into higher-performance enterprise and datacenter environments. However, specifications remain unconfirmed and should be considered provisional until officially published.

UniFi Dream Machine BEAST – A 25GbE UDM!

The UniFi Dream Machine BEAST appears to be a significant evolution of the existing Dream Machine platform, extending beyond the capabilities of current models such as the UniFi Dream Machine Pro Max. Based on observed hardware, this device integrates substantially higher port density, particularly in 10G and 25G connectivity, while also introducing onboard storage via dual SATA bays. This suggests a continued emphasis on combining routing, switching, and application hosting within a single appliance, including UniFi OS services such as Protect and other controller-based functions.

Compared to previous Dream Machine models, the BEAST shifts closer toward an enterprise-focused deployment, particularly in environments requiring direct multi-gigabit connectivity without reliance on additional aggregation switches. However, key system details such as CPU architecture, memory capacity, and throughput performance remain unconfirmed. The absence of official documentation indicates that this device is still in a pre-release or prototype stage, and its final positioning within the UniFi portfolio is not yet defined.

UniFi Enterprise Fortress Gateway Core – Truly Enterprise

The UniFi Enterprise Fortress Gateway Core appears to extend the capabilities of the existing UniFi Enterprise Fortress Gateway into a significantly higher performance tier. While the current Enterprise Fortress Gateway is already positioned as a high-end UniFi routing platform, the Core variant introduces substantially greater port density and bandwidth, including support for 100G connectivity. This suggests a shift from traditional edge gateway roles toward deployment in core or aggregation layers within larger enterprise or datacenter environments.

The observed hardware indicates a design focused on high-throughput routing and multi-layer network integration, with a combination of 10G copper, 25G SFP28, and 100G QSFP28 interfaces. This represents a notable departure from existing UniFi gateway designs, which typically rely on lower port counts and external switching for aggregation. As with the Dream Machine BEAST, critical specifications such as processing architecture, memory configuration, and pricing remain undisclosed, reinforcing the likelihood that this device is still in a pre-release stage.

UniFi Enterprise 100G – Next-Level Connections

The UniFi Enterprise 100G appears to be a high-density aggregation or spine switch designed for environments requiring large-scale bandwidth distribution. Its configuration, centered around 25G access ports and 100G uplinks, aligns with common leaf-spine architectures used in enterprise and datacenter networks. Within the current UniFi portfolio, the closest comparison would be aggregation-focused switches such as the UniFi Switch Enterprise Aggregation, although the observed specifications of this device significantly exceed existing models in both port count and total throughput capacity.

This device is likely intended for deployment deeper within network infrastructure rather than at the edge, acting as a central switching layer connecting multiple high-speed access or distribution switches. The combination of 48 × 25G and 6 × 100G ports suggests a focus on scalability and backbone connectivity rather than end-device access. As with the other devices observed, no official documentation, pricing, or detailed hardware specifications have been released, and its final role within the UniFi ecosystem remains unconfirmed.

UniFi Enterprise S – PoE Powerhouse

The UniFi Enterprise S appears to be a high-density access switch focused on multi-gigabit connectivity and high-power PoE delivery. Its configuration combines a large number of 2.5G and 10G copper ports, all supporting PoE+++, alongside 25G uplinks for upstream connectivity. Within the current UniFi lineup, there is no direct equivalent, although products such as the UniFi Switch Pro XG 48 PoE operate in a similar space with lower overall port density and more limited PoE capability. The Enterprise S extends this concept by standardising high-power PoE across all access ports.

This design suggests deployment in environments with dense endpoint requirements, including wireless access points, cameras, and AV equipment, where both bandwidth and power delivery are critical. The combination of 2.5G and 10G ports allows for flexibility across different device classes, while the inclusion of 25G uplinks supports integration into higher-speed aggregation layers. As with the other devices observed, there is no confirmed information regarding total power budget, internal hardware, or release timeline, and the device should be considered pre-release.

---

The four devices observed at NAB 2026 indicate a broader shift in the UniFi portfolio toward higher-performance networking tiers. Collectively, they introduce increased port density, support for 25G and 100G connectivity, and in some cases, significantly expanded power delivery capabilities. Compared to currently available products such as the UniFi Enterprise Fortress Gateway and UniFi Dream Machine Pro Max, these systems represent a move beyond traditional edge and SMB-focused deployments into roles typically associated with enterprise core, aggregation, and high-density access layers.

However, all four devices remain unannounced and lack confirmed specifications, pricing, and release timelines. As a result, their final positioning and availability cannot be determined with certainty. While the observed hardware suggests a structured expansion into a more complete end-to-end networking stack, any conclusions remain provisional until formal details are released by Ubiquiti Inc..

 

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New QNAP TS-xh66TX SERIES – Intel i3, USB4, 2x 10GbE, M.2/E1.S, SATA, U.2, PCIe and MORE

QNAP’s TS h666TX, TS h866TX and TS h966TX arrive at a point where the company’s tower portfolio has had a fairly visible split between mainstream QTS systems such as the TS 464 and TS 664, and higher tier QuTS hero models such as the TVS h674. The older TS x64 family remains relevant, but those systems are built around the Intel Celeron N5095 with DDR4 memory and a lower ceiling for memory expansion, while the TVS h674 moves into a more performance led and more expensive part of the range with desktop class Intel Core processors and QuTS hero support. Against that backdrop, a new ZFS focused series with Intel Core i3 1215U, DDR5 memory, integrated 10GbE and USB4 has a clear role in the lineup, at least on paper.

That is also why these systems are likely to attract attention from buyers who want more than the current TS 464 or TS 664 can offer, but who may not need, or want to pay for, a TVS h674 class solution. The i3 1215U itself is a 6 core, 8 thread mobile processor with 2 Performance cores, 4 Efficient cores and boost speeds up to 4.40 GHz, which places it well above the older Celeron class hardware used in the TS x64 generation. Combined with QuTS hero’s ZFS platform and the broader move toward hybrid HDD and SSD storage layouts, these new TS h66xTX models appear designed to address demand for a more modern mid range NAS that balances file services, high speed networking and SSD aware storage without immediately stepping into QNAP’s more workstation style hero systems.

Specification	TS-h666TX	TS-h866TX	TS-h966TX
CPU	Intel Core i3-1215U	Intel Core i3-1215U	Intel Core i3-1215U
Memory	8GB DDR5, up to 64GB	8GB DDR5, up to 64GB	8GB DDR5, up to 64GB
SATA Bays	4 x 3.5-inch	6 x 3.5-inch	5 x 3.5-inch
SSD Bays	2 x E1.S / M.2 NVMe 2280	2 x E1.S / M.2 NVMe 2280	4 x U.2 / SATA 2.5-inch
Network	2 x 10GbE	2 x 10GbE	1 x 10GbE, 1 x 2.5GbE
USB	2 x USB 10Gb/s, 2 x USB4	2 x USB 10Gb/s, 2 x USB4	2 x USB 10Gb/s, 2 x USB4
PCIe Expansion	1 x PCIe Gen 3 x4	1 x PCIe Gen 3 x4	None listed

QNAP TS-h666TX, TS-h866TX and TS-h966TX – Design & Storage

The clearest design distinction in this series is that QNAP is not treating all 3 models as simple capacity variants of the same enclosure. The TS h666TX and TS h866TX appear to share the same newer tower styling, with the standard 3.5 inch bays on the front and a separate area for the solid state media, while the TS h966TX moves into the denser mixed media format that QNAP has used before on some of its hybrid hero systems. That already places the range closer to a purpose built QuTS hero family than a straightforward update of the older TS 464 and TS 664, which used a more conventional compact tower layout with 4 or 6 HDD bays and 2 internal M.2 slots rather than externally accessible SSD facing bays.

From a storage layout perspective, the TS h666TX and TS h866TX are the more direct and easier models to position. They combine either 4 or 6 SATA HDD bays with 2 additional E1.S or M.2 NVMe capable bays, effectively giving each system a built in hybrid structure for HDD capacity and SSD tiering or fast pool allocation. That is a notable step away from the TS 464 and TS 664 approach, where the SSD element is present but still secondary, with 2 x M.2 2280 PCIe Gen 3 x1 slots intended mainly for caching or separate SSD storage rather than being presented as a more central part of the overall bay count.

The TS h966TX is the more unusual model in the group because it uses a 5 plus 4 arrangement, with 5 SATA HDD bays and 4 U.2 or SATA 2.5 inch bays. In practical terms, that design is less about scaling raw HDD capacity and more about offering a denser mixed media platform for users who want heavier SSD integration without moving into a full flash chassis. That layout is more in line with some of QNAP’s existing hybrid hero systems, where ZFS storage is paired with a more deliberate split between bulk HDD storage and higher speed SSD media, rather than the simpler HDD plus cache model seen in entry and lower mid range systems.

This is also where the new series starts to sit in a more defined position between the TS x64 range and the TVS h674 class. The TS 464 and TS 664 are still marketed as compact and affordable towers with M.2 support, but their storage design remains closer to mainstream SMB and prosumer use. The TVS h674, by comparison, is a 6 bay QuTS hero platform with 2 x M.2 NVMe slots and a much more traditional premium desktop NAS structure, focused on higher end ZFS deployment and PCIe expansion. The TS h666TX and TS h866TX seem to introduce a middle route, where the chassis and bay layout are more SSD aware and more explicitly hybrid than the TS x64 generation, but without fully mirroring the larger TVS hero desktop approach.

Overall, the design language here suggests that QNAP is targeting users who want direct access to both hard drive and flash storage in a tower form factor without relying entirely on internal motherboard mounted SSD slots. For QuTS hero in particular, that matters because ZFS benefits from clearer separation of storage roles, whether for high speed pools, application storage, read intensive workloads or automated tiering as QNAP continues to develop Qtier support in its ZFS platform. As a result, the storage design of the TS h666TX, TS h866TX and TS h966TX is not just a matter of adding more bays, but of shifting the product family toward more structured hybrid storage deployment than the older TS 464 and TS 664 offered.

QNAP TS-h666TX, TS-h866TX and TS-h966TX – Internal Hardware

Internally, the most important shift in this series is the move to Intel Core i3 1215U. This is a 6 core, 8 thread processor with a hybrid layout of 2 Performance cores and 4 Efficient cores, up to 4.40 GHz boost, and a 15 W base power profile. In broad terms, that puts it above the Intel Celeron N5095 used in the TS 464 and TS 664 generation, which is a 4 core, 4 thread chip with a lower performance ceiling and no hybrid core structure. For a QuTS hero platform, that matters because ZFS services, snapshots, background data operations, deduplication related overhead where applicable, and multi user file handling all benefit from having more CPU headroom than the older Celeron class systems can typically provide.

Memory is the other clear upgrade point. According to the revealed specification, all 3 systems arrive with 8GB DDR5 and support expansion up to 64GB. That is a substantial change in class compared with the TS 464, which uses DDR4 and officially tops out at 16GB, and it aligns more closely with the expectations of a ZFS based system where memory capacity can have a direct effect on caching behaviour, data services and overall responsiveness under heavier workloads. It does not place these models at the same level as QNAP’s higher end QuTS hero hardware with larger default memory pools or ECC focused enterprise positioning, but it does move them noticeably beyond the entry and lower mid range segment.

That leaves these systems in an interesting middle position when compared with the TVS h674. The TVS h674 is still the more powerful desktop hero system overall, with Intel Core desktop CPUs such as the Core i5 12400 or Core i3 12100 depending on configuration, higher default memory allocations, and a more overtly performance focused design. At the same time, the new TS h666TX, TS h866TX and TS h966TX seem to be aiming for a more efficient balance of modern CPU architecture, ZFS support and hybrid storage flexibility without moving fully into that higher cost workstation style category. In other words, the internal hardware does not suggest a direct replacement for the TVS h674, but it does suggest a clear move away from the older TS x64 class and toward a more serious mid tier hero platform.

QNAP TS-h666TX, TS-h866TX and TS-h966TX – Ports and Connectivity

Connectivity is one of the areas where this series separates itself most clearly from the older TS x64 generation. The TS h666TX and TS h866TX both combine 2 x 10GbE with 2 x USB 10Gb/s and 2 x USB4, alongside a PCIe Gen 3 x4 expansion slot. That is a substantial step forward from systems such as the TS 464, which provides 2 x 2.5GbE as standard and relies on PCIe expansion if higher bandwidth networking is needed. In practical terms, that means the new h66xTX models are being positioned for multi user editing, faster backup windows and direct attached workflows in a way that the mainstream TS line was not originally built around.

The inclusion of USB4 is particularly relevant here because QNAP has already used this kind of connectivity in creator focused products such as the TVS h674T, where Thunderbolt 4 is presented as a direct host connection option for Mac and Windows systems. While QNAP will still need to confirm the exact implementation and host workflow support on these new NAB 2026 systems, the presence of 2 x USB4 on all 3 models suggests that direct high bandwidth connection is a deliberate part of their design, rather than a secondary feature. That places these units closer to QNAP’s media and production focused hardware than to the more general office and home NAS segment.

The TS h966TX is slightly different, and arguably less aggressive, in its network configuration. Instead of the dual 10GbE arrangement of the h666TX and h866TX, the h966TX is listed with 1 x 10GbE and 1 x 2.5GbE, while still retaining 2 x USB 10Gb/s and 2 x USB4. That means the 9 bay model has the most storage flexibility in the family, but not the strongest network specification on paper. If that specification is accurate at launch, it makes the h966TX a more storage led hybrid platform rather than the highest bandwidth model in the group, which is not the usual assumption buyers would make when looking at the largest chassis first.

Specification:
TS h666TX: 2 x 10GbE, 2 x USB 10Gb/s, 2 x USB4, 1 x PCIe Gen 3 x4
TS h866TX: 2 x 10GbE, 2 x USB 10Gb/s, 2 x USB4, 1 x PCIe Gen 3 x4
TS h966TX: 1 x 10GbE, 1 x 2.5GbE, 2 x USB 10Gb/s, 2 x USB4

QNAP TS-h666TX, TS-h866TX and TS-h966TX – Price and Release Date

At the time of writing, QNAP does not appear to have published final retail pricing or a formal product page for the TS h666TX, TS h866TX or TS h966TX on its main product catalogue or 2026 newsroom pages, so both availability and price should still be treated as unconfirmed. Based on the information shared at NAB 2026, the current indication is a target launch window around Q2 to Q3 2026, but that remains provisional until QNAP publishes official listings, regional store pages or a formal press release. QNAP’s own 2026 newsroom and product comparison pages currently show no live retail entry for these 3 systems, which supports the view that the series is still in the pre release stage rather than being commercially available now. In pricing terms, the most reasonable expectation is that this range will sit above the TS x64 family and below the TVS h74 class, assuming QNAP keeps the rest of its tower lineup structured in the same way. The TS 464 is still positioned by QNAP as a mainstream high performance tower option in its 2026 buying guide, while the current TVS h674 remains a more premium QuTS hero desktop platform with stronger CPU options and a generally higher specification tier. Given that the new TS h666TX and TS h866TX introduce QuTS hero, DDR5, Intel Core i3 1215U, integrated 10GbE and USB4, they would logically land between those 2 product families rather than alongside either one directly.

That said, the TS h966TX may prove harder to price neatly because its storage configuration is more specialised than the other 2 models. Its 5 plus 4 hybrid layout, mixed 10GbE and 2.5GbE networking, and heavier SSD oriented design could place it closer to existing hybrid hero systems in value, even if its processor remains the same. Until QNAP confirms MSRPs, any exact figure would be speculative, but the broader market position appears to be that these are intended as a mid tier QuTS hero tower family, not a direct budget replacement for the TS 464 and TS 664, and not a full substitute for the TVS h674 or TVS h674T either.

 

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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.

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