OCZ 256GB Octane SATAIII 2.5". Solid-state drive capacity: 256 GB, Size: 63.5 mm (2.5 "), Solid-state drive interfaces: Serial ATA III. Read speed: 480 MB/s, Write speed: 310 MB/s, Random write (4KB): 25000 IOPS. Security algorithms supported: 256-bit AES. Power consumption (standby): 1.15 W, Power consumption (read): 1.98 W, Power consumption (write): 1.98 W. Mean time between failures (MTBF): 1250000 h