What are the alternatives to the OWC Express 4M2 USB4 40Gb/s Four Slot NVMe M.2 SSD Enclosure | Four NVMe M.2…?

OWC Express 4M2 USB4 40Gb/s Four Slot NVMe M.2 SSD Enclosure | Four NVMe M.2… competes with other Drives & Media products on SpecPicks. Use our Compare tool to view specs side-by-side, or browse the full Drives & Media category for alternatives.

OWC

OWC Express 4M2 USB4 40Gb/s Four Slot NVMe M.2 SSD Enclosure | Four NVMe M.2 2230/2242/2280 slots - Up to 3200MB/s - Connects to Thunderbolt 5/4/3 and USB-C 10Gb/s - Mac/PC

Name: OWC Express 4M2 USB4 40Gb/s Four Slot NVMe M.2 SSD Enclosure | Four NVMe M.2 2230/2242/2280 slots - Up to 3200MB/s - Connects to Thunderbolt 5/4/3
Brand: OWC
SKU: B0FFJWMRN2
Price: 178.99 USD
Availability: InStock

By Mike Perry, Hardware Editor · Verified 2026-09-06

Mike Perry has researched PC hardware since 2014, tracking 80+ GPU generations, 50+ retro handheld platforms, and 30+ vintage PC configurations. He synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. View full credentials →

$178.99

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*Price sourced from Amazon.com. Last updated 2026-08-17. Price and availability subject to change.

Bottom line: The OWC Express 4M2 USB4 40Gb/s Four Slot NVMe M.2 SSD Enclosure | Four NVMe M.2 2230/2242/2280 slots - Up to 3200MB/s - Connects to Thunderbolt 5/4/3 and USB-C 10Gb/s - Mac/PC is a niche pick — read recent reviews before buying in the drives & media category, priced around $178.99. Compare close alternatives before committing.

SpecPicks Verdict

SpecPicks scored OWC Express 4M2 USB4 40Gb/s Four Slot NVMe M.2 SSD Enclosure | Four… using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the drives & media category. OWC's drives & media lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Mixed or limited buyer feedback at this price point — focus your evaluation on recent reviews that specifically address build quality and long-term reliability, and shortlist one or two close alternatives before deciding.

Common buyer scenarios for drives & media of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Pros & Cons

Pros

✓ Highly Capable: Up to 3200MB/s real-world performance
✓ Backed by OWC's warranty and support channels
✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

Key Features

Highly Capable: Up to 3200MB/s real-world performance
Highly Compatible: Use with USB4, Thunderbolt, and USB-C Macs and PCs
Highly Reliable: Aircraft grade aluminum offers rugged protection of installed SSDs plus effective heat dissipation to keep everything cool for consistent top speed
Near Silent Operation: Engineered with smart, adaptive fans that activate only when needed or under heavy load, making it ideal for uninterrupted creative focus
DIY easy: Use your choice of NVMe M.2 2230, 2242, or 2280 SSDs
Built for RAID: Certain models include OWC SoftRAID; the fastest and most flexible RAID 0/1/4/5/1+0 (10) tool. Also supports Apple Disk Utility RAID, Windows Disk Management RAID, and Windows Storage Spaces

Full Specifications

Brand	OWC
Color	Multicolor
Complete	Includes USB-C 40Gb/s cable
DIY easy	Use your choice of NVMe M.2 2230, 2242, or 2280 SSDs
Model Name	OWCUS4EXP4M2 28783642
Read Speed	3200 megabytes_per_second
Unit Count	1 Count
Worry-free	2 Year OWC Limited Warranty
Form Factor	M2
Media Speed	3200 megabytes_per_second
Connectivity	USB-C
Model Number	OWCUS4EXP4M2
Compatibility	PC, Mac
Built-In Media	1.0M USB-C 40Gb/s Cable, External Power Supply, OWC Express 4M2 Enclosure
Highly Capable	Up to 3200MB/s real-world performance
Highly Reliable	Aircraft grade aluminum offers rugged protection of installed SSDs plus effective heat dissipation to keep everything cool for consistent top speed
Mfr Part Number	OWCUS4EXP4M2
Number of Items	1
Special Feature	Smart Adaptive Cooling
Hardware Platform	Mac, Windows

Ready to buy?

OWC Express 4M2 USB4 40Gb/s Four Slot NVMe M.2 SSD Enclosure | Four NVMe M.2 2230/2242/2280 slots - Up to 3200MB/s - Connects to Thunderbolt 5/4/3 and USB-C 10Gb/s - Mac/PC is sold on the used and vintage market, where eBay carries the live inventory — Amazon does not stock this part. Prices and condition vary by seller and move in real time, so we link the live listing rather than quote a cached price. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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*Price sourced from Amazon.com. Last updated 2026-08-17. Price and availability subject to change.