Seagate Momentus 5400 160GB 5400RPM SATA 3Gb/s 8MB Cache 2.5 Inch Internal NB Hard Drive ST9160314AS-Bare Drive Seagate Momentus 5400.6 ST9160314AS 2.5-inch Hard Drive General Features: 160 GB formatted capacity Serial ATA interface SATA/300 data transfer rate 8 MB buffer 5400 RPM spindle speed 5.6 ms average latency 2.5-inch form factor 9.5 mm drive height Power Specifications: +5V, 0.451A Regulatory Approvals: CE cULus MIC BSMI C-Tick