Edge Boost 40GB 2.5" SATA II. Solid-state drive capacity: 40 GB, Size: 63.5 mm (2.5 "), Solid-state drive interfaces: Serial ATA II. Read speed: 285 MB/s, Write speed: 275 MB/s, Data transfer rate: 3 Gbit/s. Security algorithms supported: 128-bit AES. Power consumption (standby): 0.5 W, Power consumption (read): 2.5 W, Power consumption (write): 2.5 W. Mean time between failures (MTBF): 2000000 h