The Western Digital Blue WD7500BPVX 750 GB Hard Drive is a 2.5-inch internal SATA hard drive designed for desktop computers. It has a storage capacity of 750 GB and a cache memory size of 750 GB, making it ideal for storing large amounts of data and files. The drive is lightweight at 0.26 pounds and has a compact form factor, making it easy to install in a desktop computer. With its reliable performance and brand reputation, the Western Digital Blue WD7500BPVX hard drive is a dependable choice for expanding storage capacity in a desktop system.