The Western Digital 500 GB, Internal, 7200 RPM, 8.89 cm (3.5") (WD5000AADS) Hard Drive provides the user with plenty of space and speed. It measures 4 x 1-inch and weighs less than 2 lbs. This hard drive is easy to install with the Serial ATA. Depending on the user's connection, this Western Digital hard drive provides a speed of 180 MBps up to a higher speed of 300 MBps, which makes it ideal for faster data transfers. Users who run general computer programs and need powerful processing won’t have big problems with this hard drive. It handles the primary processes for computers running on Windows-based applications. If a user doesn't want to use it as a primary drive, he can use this Western Digital 500 GB hard drive as a spare. It is easy to put into the extra drive bays. Aside from high-performance capabilities, this hard drive also utilizes less power. A Western Digital 500 GB hard drive optimizes about 40 percent of PC power as compared to other internal hard drives. This Western Digital hard drive also showcases IntelliSeek, NoTouch, and other low-power technologies. Anyone can count on this Western Digital 500 GB hard drive to be subtle and remain cool while working inside a desktop.