The black SE-208GB/RSBD Slim USB DVD-Writer from Samsung connects externally to your Windows or Mac computer via USB 2.0. When connected to your computer, this optical drive allows you to install software, back up files, listen to music, and more from DVD and CD discs. It features read and write speeds up to 8x on DVDs and 24x on CDs. This drive also supports DVDs in the capacities of 4.7GB (single-layer) and 8.5GB (double-layer). Furthermore, this drive offers buffer memory technology that saves up to 704KB of data to prevent buffer underrun errors.