OCZ 400GB Deneva 2. Solid-state drive capacity: 400 GB, Size: 63.5 mm (2.5 "), Solid-state drive interfaces: Serial ATA. Read speed: 550 MB/s, Write speed: 500 MB/s, Random write (4KB): 80000 IOPS. Power consumption (standby): 2.85 W, Power consumption (read): 2.85 W. Mean time between failures (MTBF): 10000000 h. Operating temperature range (T-T): 0 - 55 °C, Storage temperature range (T-T): -45 - 85 °C