The LG GH24NS50 Super Multi DVD Rewriter Dual Layer Optical Drive is a black CD drive with a 5.25-inch form factor and SATA interface. It is compatible with PCs and can read and write various formats, including DVD-R, DVD+R Dual Layer, DVD-RW, CD-R, DVD+RW, CD-RW, DVD+R, DVD-RAM, DVD-R Dual Layer, DVD+R Dual Layer, DVD-ROM, and CD-ROM. It has a cache of 2 MB and a write speed of 24x.