The Western Digital Caviar Blue is a hard drive that works great for someone using their PC for everyday computing whether for business or pleasure. The Western Digital hard drive has 1.03 x 5.79 x 4-inch dimensions and is lightweight at just 1.32 lbs. This internal 160 GB 3.5-inch hard drive is best suited for a desktop computer. This internal 160 GB 3.5-inch hard drive is easily installed through the SATA or SATA 3 interfaces. The Western Digital Caviar Blue operates in a way to keep the drive cool while allowing the user to access all of their data 24/7. The Western Digital Caviar Blue includes a spindle speed of 7,200 RPM with an external data transfer rate of 300 Mbps. This speed allows users to access their data at any time while working on a variety of applications at a time. Ultimately, the Western Digital hard drive is a great choice for everyday computing users who require a large amount of data storage on their desktop.