Freecom 320GB CLS HDD, Mobile Drive. Hard drive capacity: 320 GB, Hard drive interface: Serial ATA, Hard drive size: 63.5 mm (2.5 "). Colour of product: Black. Weight: 0.155 kg, Width: 109 mm, Depth: 79 mm. Operating temperature range (T-T): 10 - 35 °C, Storage temperature range (T-T): -20 - 70 °C, Operating relative humidity range: 8 - 80 %. Certification: CE, FCC