OTHER WORLD COMPUTING
OTHER WORLD COMPUTING OWCUS4EXP4M2S ORWC EXPRESS 4M2 USB4 WITH SOFTRAID
Mfg Part Number: OWCUS4EXP4M2S , Item #: 5671274
Image may not reflect the actual item.
Price: $468.50
Quantity:
More to Come
Last Updated: Feb 03, 2026
No Sales Tax except these states
, PO and Wire.
The Best DIY RAID You Wanted
We heard you loud and clear (pun intended) when you said you loved everything about the Express 4M2 but wanted it quieter. After adding smart adaptive fans that only turn on when needed for near silent operation, we decided to give it USB4 connectivity for the optimum blend of compatibility, performance, and affordability. Now you can build a desktop/shuttle high-performance RAID with your choice of NVMe M.2 SSDs and get up to 3200MB/s performance with USB4, Thunderbolt, and USB-C Macs and PCs.
Maximum Speed from Your Machine
The Express 4M2 is the fastest multiple NVMe SSD enclosure we offer and was purposefully built so you can utilize the maximum performance capability of your Mac or PC with full compatibility:
Main Specification
| General Information | |
| Manufacturer | Other World Computing |
| Manufacturer Part Number | OWCUS4EXP4M2S |
| Manufacturer Website Address | https://www.owc.com/ |
| Brand Name | OWC |
| Product Line | Express |
| Product Name | Express 4M2 USB4 (40Gb/s) External Storage Enclosure |
| Packaged Quantity | 1 |
| Product Type | DAS Storage System |
| Storage | |
| Number of Solid State Drive Supported | 4 |
| Maximum Data Transfer Rate | 40 Gbit/s |
| UASP Support | Yes |
| I/O Expansions | |
| Number of Total Expansion Bays | 4 |
| Controllers | |
| Non-RAID Mode | JBOD |
| RAID Supported | Yes |
| RAID Levels | 0, 1, 4, 5, 10, JBOD |
| Software RAID Supported | Yes |
| Interfaces/Ports | |
| Drive Interface | M.2 |
| Host Interface | USB4 |
| Total Number of USB Ports | 1 |
| Number of USB4 Ports | 1 |
| Software | |
| Operating System Supported | Windows 11 |
| Operating System Supported | Windows Server 2022 |
| Operating System Supported | Windows 10 |
| Operating System Supported | Windows Server 2019 |
| Operating System Supported | Windows Server 2016 |
| Operating System Supported | Windows 10 x64 |
| Operating System Supported | macOS Sequoia 15.x |
| Operating System Supported | macOS Sonoma 14.x |
| Power Description | |
| Maximum Power Supply Wattage | 48 W |
| Physical Characteristics | |
| Cooling Fan | Yes |
| Height | 5.5" |
| Width | 2.4" |
| Depth | 7" |
| Form Factor | External |
| Weight (Approximate) | 3.97 lb |
| Miscellaneous | |
| Package Contents |
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| Warranty | |
| Limited Warranty | 2 Year |
WARNING:: The plastic used in cable products can expose you to lead and lead components,
chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information go to www.P65Warnings.ca.gov
