For desktop computers, the HP 18.2 GB hard drive is a fully compatible high-speed device designed to handle complex data storage and transmission tasks in everyday computing. Additionally, the hard drive provides a capacity of 18.2 GB and works with a SCSI Ultra320 interface. The HP BF01885A34 hard drive also offers an external data transfer rate of 320 Mbps. This means that each second, 320 megabits of data is transferred from the computer system memory to the internal buffer within the HP 18.2 GB hard drive. In addition, the HP BF01885A34 internal hard drive operates with a spindle speed of 15000 RPM. This spindle speed not only creates a faster system, but it also cuts down the amount of power drained from the CPU, which an internal hard drive of a lower speed would not. The dimensions on this HP 18.2 GB hard drive are 1 inch high and 4 inches wide, and it weighs 7 lbs.