QNAP TR-004-US SATA2 4-Bay Tower RAID Expansion Enclosure for both NAS and

NAS Storage Mode Format partition. Switches: Power; RAID modes - Software Ctrl, Individual, JBOD, RAID 0/1/5/10. Erase partition and device. Overview device, disks, and RAID info and status. RAID rebuild speed customization.

eBay