Cavalry CASD-C1. Solid-state drive capacity: 128 GB, Size: 63.5 mm (2.5 "), Solid-state drive interfaces: Serial ATA II. Read speed: 255 MB/s, Write speed: 195 MB/s, Random write (4KB): 180 IOPS. Operating voltage: 5 V, Power consumption: 200 mA. Mean time between failures (MTBF): 1300000 h. Windows operating systems supported: Windows XP, Windows Vista, Windows 7, Mac operating systems supported: Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion