Hitachi Deskstar 0A30229 400GB SATA/150 7200RPM 8MB Hard Drive Hitachi Deskstar 400 GB SATA Hard Drive General Features: 400 GB formatted capacity 7200 RPM spindle speed 8 MB buffer 8.5 ms average seek time SATA 1.5 Gb/sinterface 150 MB/sec transfer rate 3.5-inch form factor Regulatory Approvals: CE UL TUV C-Tick BSMI