No external drives or power supplies are required. Just plug it into your USB port and the DVD driver will be detected. USB 3.0 CD drive provides faster data transfer speeds up to 5Gbps. It is backward compatible with USB 2.0. It has strong error correction ability, shock resistance and noise reduction technology. The external CD drive supports reading CD, VCD, SVCD, CD-R, CD-RW, DVD-R/DVD-RW and writing CD-RW, CD+RW, DVD- RW, DVD+RW, etc. Compatible with Windows 2000/XP/2003/Vista/7/8.1/10, Linux and all versions of Mac OS systems, supports any PC, Ultrabook and Netbook. Specification: Supported formats: DVD-ROM, DVD-Video, CD-R/RW, CD-ROM/XA, CD-ROM, CD-EXTRA, CD-TEXT Supported media types: CD-ROM, CD-R, CD-RW, DVD-ROM, DVD-R, DVD-RW, DVD+RW, DVD+R, DVD+R DL, DVD-R DL, DVD RAM Reading speed : CD-ROM: up to 24 times; DVD-ROM: up to 8 times; DVD-ROM (DL): up to 6 times Writing speed: 24x CD-R, 8x CD-RW, DVDR: 8x maximum; DVDR DL: 4x maximum; DVD-R9: 2.4x maximum Rewrite speed: DVD+RW: up to 4X; DVD-RW: up to 4X; CD-RW: up to 10X; DVD-RAM: up to 3X Cache: 2M feature: 1 Your computer needs to install the CD/DVD driver if the external device cannot be recognized by your computer. 2. Make sure the power supply to the laptop is sufficient. Insufficient capacity may prevent device recognition. 3 New Windows systems have stopped using the internal DVD media player software, and customers who use Windows 10 and later are recommended to install VLC media player to play DVDs and CDs. 4 Some external devices require sufficient power to function properly, so make sure the computer is plugged into a power cord or use a powered USB hub on the computer. packing list 1x USB CD player (CD not included) 1x user manual