Hitachi Travelstar 5K500 250GB SATA/300 5400RPM 8MB 2.5" Hard Drive Hitachi Travelstar 5K500 250 GB SATA/300 2.5-inch Hard Drive General Features: 250 GB storage capacity SATA interface 3.0 Gb/s transfer rate 5400 RPM spindle speed 8 MB buffer 5.5 ms average latency 12 ms read seek time 2.5-inch form factor 9.5 mm drive height Rotational Vibration Safeguard Thermal Fly-height Control (TFC) TrueTrack Technology 1.9W read/write power