The LG Super Multi DVD Rewriter model GH22LS30 is a black, internal desktop drive that is compatible with PCs. It features a 5.25-inch form factor and supports dual-layer DVD+RW write capability, as well as DVD-R read capability. With a cache size of 2 MB and SATA I interface, this DVD drive offers reliable and high-speed performance for all your CD, DVD, and Blu-ray drive needs.