Write Speeds - up to 8x DL DVD-R, 8x DVD+R, 16x DVD-R, 16x DVD+R, 6x DVD-RW, 8x DVD+RW, 40x CD-R, 32x CD-RW * Read Speeds - up to 16x DVD-ROM & 40x CD-ROM * 2MB Cache * Connects via USB 2.0 * OS Compatibility - Windows 98 SE or later