G.Skill FM-25S2S-40GBP2. Solid-state drive capacity: 40 GB, Size: 63.5 mm (2.5 "), Solid-state drive interfaces: Serial ATA II. Read speed: 280 MB/s, Write speed: 270 MB/s, Data transfer rate: 3 Gbit/s. Mean time between failures (MTBF): 2000000 h. Operating temperature range (T-T): 0 - 70 °C, Operating shock: 1500 G, Maximum operating altitude: 18288 m. Colour of product: Black