CRU ToughTech Secure Q. Total storage capacity: 2000 GB, Hard drive capacity: 2000 GB, Hard drive interface: Serial ATA. Security algorithms supported: 256-bit AES, Cable lock slot: Kensington. Power requirements: 100-240 VAC. Width: 225 mm, Depth: 130 mm, Height: 35 mm. Operating relative humidity range: 5 - 95 %