This Western Digital 160 GB hard drive is reliable and ultra-fast, and it is perfect for those who care about data integrity. Power users and IT professionals love the construction and performance of this Western Digital 160 GB hard drive. The Western Digital Caviar is a capable pick for upgrading to a better hard drive. This internal 3.5" hard drive is easily installable, enabling you to quickly make use of it in systems supporting the ATA-100 standard. This Western Digital 160 GB hard drive features a fantastic 7200 RPM disk speed enabling you to save large videos, data files, and photos without having to wait. With the 2 MB data buffer featured on the Western Digital Caviar, you can attain impressive access times when transferring data, downloading music, or backup up your system. This internal 3.5" hard drive is highly reliable, with solid construction, enabling you to benefit from long-lasting flawless performance without fearing loss from mechanical breakdowns or data errors. Plus, the Western Digital Caviar makes it easy for you to store your entire family's downloaded music, software packages, and photo library with plenty of room to spare thanks to its big storage space.