160 GB SATA 2.5 Inch 5400 RPM Version 4 Laptop Internal Hard Drive -5,400 RPM Spin Speed, 8 MB Cache Buffer.-SATA 3.0Gb/s Interface, 160 GB Capacity.-Average latency 5.6 msec, Random read seek time 14 msec.-Best-Fit Applications; Mainstream laptops, External storage solutions/boxes, Whitebooks, Industrial applications requiring a smaller form factor.-3 Year Warranty.