WD Caviar GP 1TB Internal Serial ATA-300 7,200 RPM 16MB Hard Drive - WD10EACS Western Digital WD10EACS 1 TB SATA/300 Hard Drive General Features: 1 Terabyte (1,000 GB) capacity Serial ATA interface SATA/300 data transfer rate 5400-7200 RPM spindle speed (determined by IntelliPower) 8 MB cache buffer 8.9 ms average read seek 5.6 ms average latency Power Specifications: +5V, 0.70A +12V, 0.55A Regulatory Approvals: BSMI TUV cULus Certification for worldwide use