Fantec MR-35US3R. RAID levels: 0, 1, 3, 5, 10, JBOD, Hard drive interface: Serial ATA, Hard drive size: 88.9 mm (3.5 "). Power requirements: 100-240V ~50-60Hz. Weight: 4 kg. Compatible operating systems: Windows 2000/XP/Vista,7, Mac OS X, Linux. Dimensions (WxDxH): 130 x 259 x 184 mm