With a Seagate Momentus 5400.3, any computer will run faster. This Seagate hard drive, which runs at 5,400 RPM, is an integral part of the machine. When looking for an internal 120 GB hard drive, gamers, programmers, and bloggers all agree that this is a great option. With a 2.5-inches wide, the Seagate Momentus 5400.3 fits in a standard desktop PC bay. Because of this, the need for finding specialty parts is not necessary. This internal 120 GB hard drive has a buffer size of 8 MB, allowing users to start programs faster and run them with ease. Whether upgrading an old computer, or putting together a new one, a Seagate hard drive gives a computer an external data transfer rate of 100 Mbps, which also helps the speed and performance of the machine. No matter what trials a computer is put through, the Seagate Momentus 5400.3 is up to the challenge. Whether a user is looking for performance, speed, or even just compatibility and size, this hard drive is sure to stand up to the requirements.