Fantec MR-35DUS2. RAID levels: 0, 1, JBOD, Hard drive interface: Serial ATA, Hard drive size: 88.9 mm (3.5 "). Power requirements: 100-240V ~50-60Hz. Weight: 2.5 kg. Compatible operating systems: Windows 2000/XP/Vista, Mac OS X, Linux. Dimensions (WxDxH): 130 x 210 x 117 mm