The Toshiba 160GB MK1633GSG SATA 3Gb/s 1.8" Internal Hard Disk Drive features industry-leading capacity and performance coupled with the benefits of low power consumption and ruggedness in a compact storage solution. Equipped with a high-performance 5,400 rpm rotational speed and 16MB buffer, this drive utilizes close to 25 percent less power than comparable 2.5" hard disk drives during seek operations.Designed to withstand up to 1,500Gs of non-operating shock, the MK1633GSG provides an ideal solution for today's demanding mobile applications. Its small footprint and large storage capacity is well-suited for a variety of on-the-go computing needs, including laptop PCs, mini-notebooks, printers, and external add-on storage applications.