The Lite-On EZ-DUB USB External 16x DVD/CD-RW Drive SHW-160P6SU in Black/Silver is an external drive that is compatible with PCs. It features a sleek design with a 5.25 inch form factor and measures 7.1 inches in length, 6.6 inches in width, and 2.3 inches in height. This drive is capable of reading and writing DVD-RW and CD-RW formats with a read speed of 16x and a write speed of 16x. It also comes with an 8 MB cache and a transfer rate of 480 Mbps, making it a reliable option for those in need of an external DVD/CD-RW drive.