The Seagate FreeAgent GoFlex 500GB 3.5in Desktop External HDD is a sleek black external hard drive designed for use with PCs. With a storage capacity of 500GB, this HDD offers ample space for storing a large amount of data. The auto power on/off feature allows for convenient management of the drive's power usage, while the USB interface ensures easy connectivity to your computer. This model from the FreeAgent GoFlex product line from Seagate is a reliable choice for adding extra storage capacity to your desktop setup.