Toshiba 2TB 7200RPM 64MB Buffer 3.5-Inch SATA 6Gbps Hard Drive HDEPQ02GEA51 Capacity: 2TB Rotational Speed: 7200 RPM Form factor : 3.5-Inch Interface : SATA 6Gb/s Sustained transfer rate(MAX.): 155 Mb/S Average Seek Time (Write): 9.5MS Average Seek Time (read): 8.5MS Average Latency: 4.17MS