Head-to-head · Best External SSD Enclosures

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.

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The short answer

ACASIS USB4 40Gbps NVMe Enclosure comes out ahead by a narrow margin (4.4 vs 4.3). The gap is mostly about video editors and power users needing fast external NVMe storage — read the strengths below before deciding.

Higher ratedRanked #2 in Best External SSD Enclosures

ACASIS USB4 40Gbps NVMe Enclosure

4.4

1 source$75.99as of Aug 1

The ACASIS USB4 40Gbps NVMe enclosure is an aluminium single-drive M.2 case built around an ASMedia ASM2464PD bridge, with an active fan on top of a shell that already works as a heatsink. BestChoices lists it in its Acasis 40Gbps NVMe enclosure comparison. The draw is a 40Gbps path on hosts that support USB4, tool-free installation and temperatures well below what plastic enclosures reach; the costs are an audible fan under load, no encryption and no RAID.

Strengths

— Supports Thunderbolt 4/3 and USB4 for up to 40Gbps connection speed with consistent sustained throughput under long transfers
— Active cooling fan and thermal pad provide excellent temperature control during high-load operations
— Easy tool-free installation with click-fit 2280 NVMe drive insertion and included mounting screws

Watch-outs

— Fan is audible under sustained heavy load which may be disruptive in quiet environments
— No hardware encryption or RAID options—single-drive use only
— Some early firmware polish needed for maximum compatibility with older USB ports

$75.99 · Check Price on Amazon Full review →

Ranked #3 in Best External SSD Enclosures

Plugable USBC-NVME

4.3

3 sources1 derived$22.95as of Aug 1

Tom's Hardware and StorageReview.com both praised the Plugable USBC-NVME as a compact, tool-free route to portable NVMe storage. StorageReview measured over 900MB/s with a Samsung 970 Pro and called it 'super fast for a portable solution.' The enclosure takes multiple M.2 sizes and wraps them in a sleek aluminum body with heat dissipation fins. Reviewers also noted that NVMe SSDs are a separate purchase and that heat dissipation may fall short with high-performance drives. Good for portable, high-speed storage; not for anyone who needs Thunderbolt 3 support or maximum heat management.

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 rubber standoff system

Watch-outs

— Requires separate purchase of NVMe SSD
— Heat dissipation stickers may not be sufficient for high-performance drives
— Limited to USB 3.1 Gen 2 interface (not Thunderbolt 3)

$22.95 · Check Price on Amazon Full review →

Derived means the reviewer published no score, so one was inferred from their written verdict. Everything else is a number the publisher printed. How we rank.

How they stack up

ACASIS USB4 40Gbps NVMe Enclosure

Against the Samsung X5, the ACASIS lets the buyer choose the drive rather than paying for a bundled one, and against the ORICO Thunderbolt 3 enclosure it adds USB4 and Thunderbolt 4 support. The Sabrent Rocket Nano TB4 is more compact with similar thermals but usually costs more, and the ASUS ROG Strix Arion is smaller, cheaper and considerably slower.

Plugable USBC-NVME

The Plugable USBC-NVME is more compact and tool-free than the ASUS ROG Strix Arion, but it's limited to USB 3.1 Gen 2 and lacks the thermal management of the ACASIS TBU405 Air. While the ORICO M2VG01-C3 offers a transparent design, the Plugable model supports more M.2 sizes and provides a sleek aluminum design with heat dissipation fins. Compared to the Sabrent Rocket Nano V2, the Plugable offers better compatibility and performance but at a higher price point and without the 4TB capacity option.

Specs side-by-side

Spec	ACASIS USB4 40Gbps NVMe Enclosure	Plugable USBC-NVME
Interface	USB4.0 40Gbps	USB 3.1 Gen 2 up to 10Gb/s
Speed	40 Gbps	Over 900MB/s read/write speeds
SSD Support	Thunderbolt 3/4	NVME M.2 (2280, 2260, 2240, & 2230)
Material	Aluminum alloy	Aluminum
Cooling	Active fan with thermal pad	Passive
Dimensions	100 x 68 x 15 mm	100 x 50 x 15 mm
Weight	0.22 lb	0.09 lb
Bridge Chip	ASMedia ASM2464PD	JMS583

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