About the Product
The OWC Express 4M2 USB4 Enclosure is a professional-grade storage solution supporting up to four M.2 NVMe SSDs (2230, 2242, 2280). With its USB4 interface (backward compatible with Thunderbolt 3/4 and USB-C), it delivers blazing transfer speeds up to 3200 MB/s—perfect for 4K/8K video editing, large backups, music production, and high-performance data workflows.
Featuring software-defined RAID (0, 1, 4, 5, 10, and JBOD), passive aluminum cooling, and a compact desktop form factor, the Express 4M2 combines flexibility, reliability, and silent operation for pros demanding both speed and data protection.
Permanent Key Specifications
Core features included with every enclosure.
| Slots |
4 × M.2 NVMe (2230/2242/2280) |
| Interface |
USB4 (TB3/4 & USB-C compatible) |
Core Specifications
| Brand |
OWC |
| Model |
Express 4M2 USB4 |
| Speed |
Up to 3200 MB/s |
| RAID Support |
0, 1, 4, 5, 10, JBOD (software) |
| Compatibility |
Mac, Windows, TB3/4, USB-C |
| Material |
Aluminum (passive cooling) |
| Weight |
2.2 kg |
What’s in the Box
OWC Express 4M2 USB4 Enclosure
USB-C Cable
Power Supply
User Manual
Warranty & Returns
Includes OWC’s limited warranty. Returns accepted within 7 days if unused and in original condition under Australian Consumer Law. Note: SSDs and RAID software not included; performance varies by drive and system.