Product Detail Hitachi Travelstar 5K160 120 GB 2.5-inch Notebook Hard Drive General Features: 120 GB formatted capacity UDMA/100 5400 RPM 8 MB buffer IDE interface 11 ms average seek time 2.5-inch form factor 9.5 mm drive height Power Requirements: 5V, 600mA Regulatory Approvals: CE cULus BSMI C-Tick MIC TUV WEEE . The "Hitachi Travelstar 5K160 HTS541612J9AT00 - Hard drive - 120 GB - internal - 2.5 - ATA-100 - 5400 rpm - buffer: 8 MB" is best product for you. We recommended Hitachi Travelstar 5K160 HTS541612J9AT00 - Hard drive - 120 GB - internal - 2.5 - ATA-100 - 5400 rpm - buffer: 8 MB