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Free Budget Shipping
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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: More from the Manufacturer |
| Number of Solid State Drive Supported: | 4 |
| Maximum Data Transfer Rate: | 40 Gbit/s |
| UASP Support: | Yes |
| Number of Total Expansion Bays: | 4 |
| Non-RAID Mode: | JBOD |
| RAID Supported: | Yes |
| RAID Levels: | 0, 1, 4, 5, 10, JBOD |
| Software RAID Supported: | Yes |
| Drive Interface: | M.2 |
| Host Interface: | USB4 |
| Total Number of USB Ports: | 1 |
| Number of USB4 Ports: | 1 |
| Operating System Supported: | macOS Sonoma 14.x |
| Operating System Supported: | macOS Sequoia 15.x |
| Operating System Supported: | Windows 10 |
| Operating System Supported: | Windows 10 x64 |
| Operating System Supported: | Windows Server 2019 |
| Operating System Supported: | Windows Server 2016 |
| Operating System Supported: | Windows Server 2022 |
| Operating System Supported: | Windows 11 |
| Maximum Power Supply Wattage: | 48 W |
| Cooling Fan: | Yes |
| Height: | 5.5" |
| Width: | 2.4" |
| Depth: | 7" |
| Form Factor: | External |
| Weight (Approximate): | 3.97 lb |
| Package Contents: |
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| Limited Warranty: | 2 Year |
![]() | WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov. |
Product images may differ from actual product appearance.
- This item cannot be shipped to PO Boxes.
- This item can be shipped only within the U.S.
- UPC: 810179174330
- Mfr's Part #: OWCUS4EXP4M2S


Many items at NothingButSavings.com offer FREE Budget Shipping. Plus, as with many
of our competitors which do offer free shipping, we don't ask you to spend a specified
amount in order to qualify for FREE Budget Shipping.









