Hitachi Deskstar T7K250 250GB SATA/300 7200RPM 8MB Hard Drive Hitachi Deskstar 0A31636 250 GB SATA Hard Drive General Features: 250 GB capacity 7,200 RPM spindle speed 8 MB buffer SATA/300 interface 8.5 ms average read seek time Native Command Queuing (NCQ) Power Specifications: +5V, 650mA +12V, 600mA Regulatory Approvals: cULus CE BSMI MIC C-Tick TUV