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Head-to-head · Best Portable SSDs

ACASIS USB4 40Gbps NVMe Enclosure vs Plugable USBC-NVME

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

The short answer

Plugable USBC-NVME comes out ahead by a clear margin (3.8 vs 4.3). The gap is mostly about users seeking fast, portable NVMe storage — read the strengths below before deciding.

ACASIS USB4 40Gbps NVMe Enclosure
Ranked #6 in Best Portable SSDs
ACASIS USB4 40Gbps NVMe Enclosure
$79

The ACASIS TBU405 Air delivers strong real-world performance for users needing fast external NVMe storage at a budget-friendly price point. My Tech Grid reviewer Everett Ashford praised its consistent sustained speeds and thermal control during long transfers, calling it a solid pick for video editors and photographers. The unit supports Thunderbolt 4/3 and USB4 with active cooling, making it ideal for power users on M1/M2 MacBooks and Windows laptops. However, Reddit users noted the fan noise under load and lack of encryption/RAID features may be drawbacks for enterprise users. Best for creative professionals who want Thunderbolt speeds without the premium cost, but those needing quiet operation or advanced features should consider alternatives.

Strengths
  • — Supports Thunderbolt 4/3 and USB4 with up to 40Gbps transfer speeds
  • — Active cooling system with fan and thermal pad ensures sustained performance under heavy load
  • — Tool-free installation for M.2 NVMe drives with support for 2280, 2260, 2242, and 2230 sizes
Watch-outs
  • — Fan is audible during sustained heavy use
  • — No hardware encryption or RAID capabilities
  • — Some early firmware polish needed for maximum compatibility with older USB ports
$79 · Check Price on AmazonFull review →
Plugable USBC-NVME
Higher ratedRanked #3 in Best Portable SSDs
Plugable USBC-NVME
$50

The Plugable USBC-NVME SSD enclosure offers a compact, tool-free solution for portable NVMe storage, supporting multiple M.2 form factors and delivering speeds over 900MB/s. StorageReview.com praised its sleek aluminum design and ease of installation, noting it fits in the palm of your hand and includes heat dissipation features. However, reviewers noted that NVMe SSDs must be purchased separately and the enclosure's heat management may be insufficient for sustained high-performance use. This product is ideal for users seeking fast, portable NVMe storage but may not suit those needing maximum performance or integrated drive options.

Strengths
  • — Supports multiple M.2 form factors including 2280, 2260, 2242, and 2230
  • — Achieves real-world speeds over 900MB/s with USB 3.1 Gen 2 interface
  • — Tool-free installation with simple snap-in design
Watch-outs
  • — NVMe SSDs must be purchased separately
  • — Heat dissipation stickers are included but may not be sufficient for sustained high performance
  • — Limited to USB 3.1 Gen 2 interface (not Thunderbolt 3)
$50 · Check Price on AmazonFull review →

How they stack up

ACASIS USB4 40Gbps NVMe Enclosure

The ACASIS USB4 40Gbps NVMe Enclosure outperforms the ASUS ROG Strix Arion in terms of Thunderbolt 4/3 support and active cooling, making it ideal for creative professionals. However, it's less aesthetically pleasing than the OWC Express 1M2 and lacks hardware encryption, which the OWC offers. Compared to the Plugable USBC-NVME, it provides better performance and compatibility but at the cost of fan noise and a more complex installation process.

Plugable USBC-NVME

The Plugable USBC-NVME offers a compact and tool-free design, making it more portable than the ASUS ROG Strix Arion and OWC Express 1M2, but it delivers lower speeds compared to the ACASIS USB4 40Gbps NVMe Enclosure and lacks Thunderbolt support. Unlike the Sabrent Rocket Nano V2, it's not as compact but provides better performance and heat dissipation. Compared to the ORICO M2VG01-C3, it's more versatile in terms of M.2 form factor support but lacks the transparent design.

Specs side-by-side

SpecACASIS USB4 40Gbps NVMe EnclosurePlugable USBC-NVME
InterfaceThunderbolt 4/3, USB4USB 3.1 Gen 2 up to 10Gb/s
SpeedUp to 40GbpsOver 900MB/s read/write
CapacityUp to 4TBN/A
Form Factor2280, 2260, 2242, 2230External NVMe Enclosure
Dimensions100 x 68 x 15 mm100 x 60 x 15 mm
Weight110 g40 g
CompatibilityM1/M2 MacBooks, Windows laptopsNVME M.2 (2280, 2260, 2240, & 2230)
MaterialAluminum AlloyAluminum
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