The Thunderbolt 5 NVMe RAID Enclosure Built to Match and Grow With Any Workflow [Video]

The OWC Express 4M2 Ultra is a first-of-its-kind Thunderbolt 5 RAID enclosure, combining blazing fast speed, customizable storage, and RAID in a compact footprint.

Wayne Grayson • May 20, 2026

When you think of RAID storage, you probably think of big enclosures containing multiple HDDs. But thanks to the magic of Thunderbolt 5 and our engineering wizards here at OWC, now you can have a RAID that is compact, SSD-based, fully customizable, daisy-chainable, and blazing fast.

That’s the OWC Express 4M2 Ultra, the fastest compact RAID on the market.

Pack in up to four NVMe M.2 SSD blades and 32TB of storage and access speeds exceeding 6,000 MB/s—all in a RAIDable enclosure that you can daisy chain to other 4M2 Ultra units for truly scalable storage.

Check out our quick hands on below and learn more about 4M2 Ultra here.

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