8 Best USB4 DAS Storage Options
USB4 DAS is a strong current high-speed category. We required documented USB4 rather than USB-C branding alone.
Comparison Table
| Pick | Product | |
|---|---|---|
| Best USB4, 3,900MB/s | Sabrent USB4 NVMe SSD Enclosure, 3,900MB/s (EC-U4TN) | Check price |
| Best USB4/TB5 80Gbps | MOKiN 80Gbps M.2 NVMe Enclosure with LCD Display | Check price |
| Best USB4/TB3-4, 3,600MB/s | UGREEN 40Gbps M.2 NVMe Enclosure (SSD Not Included) | Check price |
| Best 4-Bay USB4 Array | TerraMaster D4 SSD NVMe Enclosure, 40Gbps (Diskless) | Check price |
| Best Budget USB4-Compatible | UGREEN Tool-Free M.2 NVMe SSD Enclosure (10Gbps) | Check price |
| Best Compact USB4-Compatible | JEYI Wire-Free M.2 2230 NVMe Enclosure (10Gbps) | Check price |
| Best Compact RAID Alternative | TerraMaster D2-320 2-Bay USB RAID Enclosure (Diskless) | Check price |
| Best High-Capacity HDD Alternative | TerraMaster D6-320 6-Bay USB DAS Enclosure (Diskless) | Check price |
Prices are approximate. Check Amazon for current pricing before purchasing.
USB4 40Gbps multi-NVMe DAS is now mature enough for genuine professional desktop storage, and we required documented USB4 specifically for every product here rather than accepting USB-C branding as a proxy for USB4 capability.
We verified bridge/PCIe architecture and fallback behavior on Thunderbolt or slower USB hosts, since USB4 enclosures vary in how gracefully they handle a host that only supports an older USB generation.
6 Criteria to Look For Before Buying a USB4 DAS Storage Option
Key buying criteria so you get the right fit the first time.
DAS means direct host attachment, not RAID
USB, Thunderbolt, and enterprise SAS storage can all be DAS. The term describes how the storage connects to a host, not whether it has RAID, what drive type it uses, or how many bays it has. Check those separately.
Bay count is not usable capacity
An 8-bay enclosure with 8x20TB drives does not give you 160TB of usable space in RAID 5 or RAID 6, parity drives eat real capacity. Calculate usable capacity under your intended RAID mode, not raw bay count times drive size.
Hardware RAID and host software RAID are not interchangeable
Hardware/enclosure RAID keeps the array portable across hosts and survives an OS reinstall; host software RAID (or SoftRAID on Mac) ties the array to specific software but is often more flexible and doesn't depend on one controller chip surviving.
The interface link rate is not your real transfer speed
A 10Gbps USB-C enclosure with 5 mechanical HDDs running simultaneously will bottleneck well below 10Gbps once you account for real sustained HDD throughput, typically 150-250MB/s per drive. Multi-drive aggregate speed matters more than the port's rated maximum.
RAID is not backup
RAID 1 or RAID 5 protects against a single drive failure, not against accidental deletion, ransomware, fire, or theft. Keep a genuine separate backup copy of anything irreplaceable, regardless of how much RAID redundancy your DAS provides.
Diskless enclosures need drives budgeted separately
Most multi-bay DAS enclosures ship completely empty. Factor in 2-8 hard drives or SSDs at your target capacity before comparing the enclosure's sticker price against a similarly-priced preconfigured external drive.
8 Best USB4 DAS Storage Options
Sabrent USB4 NVMe SSD Enclosure, 3,900MB/s (EC-U4TN)
About this pick
Sabrent's USB4 enclosure hits up to 3,900MB/s over USB4 or 2,700MB/s over Thunderbolt 3/4, backward compatible with 20/10/5Gbps USB-C ports, supporting tool-free PCIe NVMe SSDs in 2230 through 2280 sizes, explicitly not SATA M.2 drives.
It's optimized for PCIe Gen4 x4 SSDs like Sabrent's own Rocket 4 Plus, with an integrated active cooling fan built into the aluminum-and-ABS body to sustain speed during large file transfers, plug-and-play on both Windows and macOS with no drivers needed.
Best for: buyers prioritizing usb4 nvme enclosure, up to 3,900mb/s
Check price on AmazonPros
- +3,900MB/s over USB4 is near the top of this speed tier
- +Broad backward compatibility down to 5Gbps USB-C ports
- +Optimized specifically for PCIe Gen4 x4 SSDs
Cons
- −PCIe NVMe only, no SATA M.2 support
- −Full 3,900MB/s requires a genuine USB4 host port
MOKiN 80Gbps M.2 NVMe Enclosure with LCD Display
About this pick
MOKiN's enclosure uses an Intel JHL9480+RTL9210B chipset to hit up to 80Gbps over Thunderbolt 5 (included cable), fast enough to transfer 100GB in about 15 seconds, 6-7x faster than a typical 10Gbps SSD reader, supporting PCIe Gen5 SSDs up to 8TB.
A built-in LCD screen shows real-time temperature status (Normal/Medium/High) and fan speed with clear overheating alerts, backed by an active 3-speed fan that starts at 40°C to prevent thermal throttling during intensive transfers.
Best for: buyers prioritizing m.2 nvme enclosure, up to 80gbps (tb5)
Check price on AmazonPros
- +Real-time LCD temperature and fan-speed display is a genuine diagnostic feature
- +80Gbps Thunderbolt 5 is at the current performance ceiling for DAS
- +3-speed active fan actively prevents thermal throttling
Cons
- −Full 80Gbps requires a genuine Thunderbolt 5 port and cable
- −Actual speed varies significantly by connected SSD and host generation
UGREEN 40Gbps M.2 NVMe Enclosure (SSD Not Included)
About this pick
Built around the ASM2464PD chip, this enclosure reaches up to 3,600MB/s over Thunderbolt 3/4 (requiring a genuine Thunderbolt 4 cable and device to hit that peak), while remaining backward compatible with USB4/3.2/3.1/3.0/2.0 hosts at correspondingly lower speeds.
A double-sided fin design plus a three-dimensional cooling system delivers several times the heat dissipation of a standard enclosure without needing a fan, keeping operation silent. It supports 2230/2242/2260/2280 NVMe SSDs up to 8TB, explicitly excluding SATA NGFF or mSATA drives.
Best for: buyers prioritizing m.2 nvme enclosure, up to 3,600mb/s
Check price on AmazonPros
- +3,600MB/s peak speed without a cooling fan
- +Broad backward compatibility down to USB 2.0
- +Compact and travel-friendly aluminum build
Cons
- −Full 3,600MB/s requires a genuine Thunderbolt 4 cable and host
- −NVMe only, thick SSDs with pre-installed heatsinks may not fit
TerraMaster D4 SSD NVMe Enclosure, 40Gbps (Diskless)
About this pick
The D4 SSD hits up to 3,224MB/s with four 990 PRO-class SSDs installed, or 1,608MB/s with a single SSD, over a 40Gbps connection compatible with Thunderbolt 5/4/3 and USB4/3.2/3.1/3.0/2.0, supporting up to 32TB total across 4 M.2 NVMe 2280 slots (8TB each).
TerraMaster is explicit that there's no built-in hardware RAID, just four individual disks with optional third-party soft-RAID support. At just 19dB(A) in standby with temperature-controlled fans and four internal sensors, it's whisper-quiet, and the included TDAS mobile app and TPC Backupper software add wireless phone backup and scheduled Windows backup.
Best for: buyers prioritizing 4-bay nvme, up to 3,224mb/s (4 ssds)
Check price on AmazonPros
- +19dB(A) standby noise is genuinely whisper-quiet for a 4-bay NVMe array
- +Documented real 4-SSD throughput, not just link-rate claims
- +Includes both mobile backup app and scheduled Windows backup software
Cons
- −No built-in hardware RAID, soft-RAID only via third-party tools
- −Diskless, all four NVMe SSDs sold separately
UGREEN Tool-Free M.2 NVMe SSD Enclosure (10Gbps)
About this pick
UGREEN's NVMe enclosure hits a genuine 10Gbps over USB 3.2 Gen 2 (with a matching USB-C 3.2 Gen2 cable), supporting M/B&M-key NVMe SSDs in 2230/2242/2260/2280 sizes up to 8TB, explicitly not SATA NGFF or mSATA SSDs.
A buckle-based tool-free design and RTL9210 controller chip add short-circuit and over-current protection plus UASP/TRIM support for sustained SSD performance and longevity. The ultra-slim aluminum body ships with a silicone case for travel durability.
Best for: buyers prioritizing m.2 nvme enclosure, up to 8tb, 10gbps
Check price on AmazonPros
- +Genuine 10Gbps with the right cable, not just link-rate marketing
- +RTL9210 chip adds real UASP/TRIM support for SSD longevity
- +Silicone case adds travel durability
Cons
- −NVMe only, does not support SATA M.2 (NGFF) drives
- −Requires a USB-C 3.2 Gen2-rated cable for full 10Gbps
JEYI Wire-Free M.2 2230 NVMe Enclosure (10Gbps)
About this pick
JEYI's enclosure is genuinely cable-free, a magnetic protective cover opens to expose the M.2 2230 slot directly to a USB-C interface, hitting up to 10Gbps via USB 3.2 Gen 2 with the JMS583 A3 controller chip and UASP support for up to 2x faster transfers than plain USB 3.0.
It's USB-powered with no external adapter needed and supports TRIM to avoid SSD write-amplification slowdowns over time, but is specifically limited to 2230-size NVMe SSDs only, not the more common 2242/2260/2280 sizes other enclosures support.
Best for: buyers prioritizing m.2 2230 nvme enclosure only, 10gbps
Check price on AmazonPros
- +Genuinely cable-free magnetic-cover design is unique in this category
- +TRIM support prevents write-amplification slowdown over time
- +Bus-powered, no external adapter needed
Cons
- −Limited to 2230-size NVMe SSDs only, not 2242/2260/2280
- −Pocket-sized form factor trades capacity flexibility for portability
TerraMaster D2-320 2-Bay USB RAID Enclosure (Diskless)
About this pick
The D2-320 is a genuine hardware RAID enclosure supporting RAID 0, RAID 1, JBOD, and Single mode across 2 bays, hitting up to 521MB/s in RAID 0 with two 8TB HDDs, or 1,075MB/s with two SATA SSDs in RAID 0, over a 10Gbps USB 3.2 Gen 2 link.
In RAID 1, a damaged drive can be replaced directly and data rebuilds automatically, a real mirrored-backup workflow rather than just individual disk exposure. The tool-free Push-Lock tray and intelligent temperature-controlled fan carry over from TerraMaster's larger D-series enclosures.
Best for: buyers prioritizing 2-bay, hardware raid 0/1/jbod/single
Check price on AmazonPros
- +Genuine hardware RAID 1 with automatic rebuild on drive replacement
- +Documented real throughput figures for both HDD and SSD RAID 0
- +Compact 2-bay footprint for a mirrored backup setup
Cons
- −Max 44TB total (22TB x 2) capacity ceiling
- −Diskless, drives sold separately
TerraMaster D6-320 6-Bay USB DAS Enclosure (Diskless)
About this pick
The D6-320 scales TerraMaster's DAS line to 6 bays with up to 132TB total capacity (22TB per drive), hitting 1,030MB/s combined read/write with six 8TB HDDs installed, or 510MB/s with a single SATA SSD, over a 10Gbps USB 3.2 Gen 2 connection.
TerraMaster explicitly notes the D6-320 does not support RAID arrays, working only with individual disks. It carries the same hot-swap, tool-free tray, and intelligent temperature-controlled cooling as the rest of the D-series, with USB Type-C compatible with USB 3.0/3.1/3.2, Thunderbolt 3, and Thunderbolt 4 hosts.
Best for: buyers prioritizing 6-bay, up to 132tb total
Check price on AmazonPros
- +Broad host compatibility across USB and Thunderbolt generations
- +Documented sustained throughput with all 6 bays populated
- +Hot-swap without powering down the enclosure
Cons
- −No RAID function despite 6 bays
- −Diskless, drives sold separately
How We Evaluated These USB4 DAS Storage Options
Each pick was assessed across 5 criteria weighted for real-world use.
Connection & Drive Architecture
Verified whether each product is genuinely direct-attached storage (USB, Thunderbolt, or SAS to one host) and whether drives mount individually, in JBOD, or under real hardware RAID, rather than assuming any multi-bay box works the same way.
Real Interface Speed
Checked the documented USB generation, Thunderbolt generation, or SAS link speed against real sustained throughput figures where manufacturers publish them, rather than repeating theoretical link-rate marketing numbers.
RAID/JBOD Implementation
Distinguished hardware-controller RAID from host-software RAID from plain JBOD/individual-disk presentation, since these have very different failure, portability, and rebuild behavior.
Build, Cooling & Serviceability
Weighed tool-free tray design, hot-swap support, fan noise where documented, and daisy-chain or expansion options against the product's likely desk, closet, or rack environment.
Total Ownership Cost
Considered that most DAS enclosures ship diskless, factoring in drive cost, cables, and RAID software where relevant rather than judging price on the empty enclosure alone.
How to Choose the Right USB4 DAS Storage Options
USB4 Fallback Behavior
Every enclosure here documents backward compatibility down to 5Gbps USB-C ports, but check specifically whether your host is genuine USB4/Thunderbolt or a standard USB-C port, since the speed difference between those tiers is substantial, not incremental.
Frequently Asked Questions
Is USB4 the same as Thunderbolt?
They're closely related but not identical. USB4 is based on Thunderbolt 3 technology and many USB4 devices are also Thunderbolt-compatible, but always check the specific enclosure's documented compatibility list rather than assuming universal interchangeability.
Does RAID replace the need for a separate backup?
No. RAID protects against a single drive's hardware failure, but it does not protect against accidental deletion, ransomware, fire, theft, or a controller failure that affects the whole array at once. Keep a genuine separate backup copy of anything you can't afford to lose.
Do DAS enclosures come with drives included?
Most multi-bay DAS enclosures in this category ship completely diskless, you supply your own 2.5in or 3.5in SATA HDDs/SSDs or M.2 NVMe SSDs depending on the model. Budget for drive cost separately when comparing total price against a preconfigured external drive.
Will any USB-C or Thunderbolt cable give me full DAS speed?
No. Cable quality and rated bandwidth matter as much as the port. A basic charging-only USB-C cable can bottleneck a 10Gbps or faster enclosure well below its rated speed. Use the cable included with the enclosure, or one explicitly rated for the matching USB or Thunderbolt generation.
Can I add or remove drives from a DAS enclosure without powering it down?
Only if the specific enclosure documents hot-swap support, which most tool-free tray designs in this category do. Always check your specific product's hot-swap capability before removing a drive live, since not every budget enclosure supports it, especially some fixed-RAID-mode units.
Bottom Line
best overall: Sabrent USB4 NVMe SSD Enclosure, 3,900MB/s (EC-U4TN) - best usb4, 3,900mb/s pick in this roundup.
See the full rankings above for all picks with pros, cons, and best-for summaries.
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