Thecus N0204 miniNAS enclosure. RAID levels: 0, 1, JBOD. Size: 63.5 mm (2.5 "), Hard drive interface: Serial ATA. Interface: USB 1.1. Compliance industry standards: IEEE 802.11b,IEEE 802.11g. Compatible operating systems: Windows NT/2000/XP/2003/Vista Mac OS 9 / X