Bring adaptive and streamlined storage to your RAID setup with the Flex 1U4 4-Bay Thunderbolt RAID Expansion Enclosure from OWC. Sporting four 2.5/3.5" drive bays, the Flex 1U4 supports SATA III and U.2 drive interfaces. M.2 and 2.5 and 3.5" SAS drives can also be used via a compatible adapter or SAS drive controller card, available separately. Connect to a host and daisy chain via two Thunderbolt 3 ports; one port supports up to 15W of power, while the other supports up to 85W. Connect to wired peripherals or additional storage via two 15W USB-C 3.2 Gen 2 or three USB-A 3.2 Gen 2 ports.