Toshiba MK1237GSX 120GB SATA/300 5400RPM 8MB 2.5" Hard Drive Toshiba MK1237GSX 120 GB SATA/300 2.5-inch Notebook Hard Drive General Features: 120 GB capacity 5400 RPM spindle speed 8 MB buffer Serial ATA interface SATA/300 data transfer rate 12 ms average seek time 2 ms track-to-track seek time Low power consumption 2.5-inch form factor Power Specifications: +5V ( 5%), 1.0A Regulatory Approvals: UL MIC BSMI CSA C-Tick TUV CE