Samsung HD103SI, Serial ATA/300 Internal Hard Drive Samsung EcoGreen F2 HD103SI 1 Terabyte SATA/300 Hard Drive General Features: 1 terabyte (1,000 GB) formatted capacity Serial ATA interface SATA/300 data transfer rate (3.0 Gbps) 5400 RPM spindle speed 32 MB buffer 8.9 ms average seek time 5.52 ms average latency S.M.A.R.T. compliant NoiseGuard SilentSeek Native command queuing