No external drives and power supplies are required Just plug it into your USB port and the DVD driver will be detected USB 3 0 CD drives offer faster data transfer speeds up to 5Gbps It is backward compatible with USB 2 0 It has powerful error correction ability, shock resistance and noise reduction technology External CD drives support 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 system, support any PC, Ultrabook and Netbook Specification:Supported formats: DVD-ROM, DVD-Video, CD-R/RW, CD-ROM/XA, CD-ROM, CD-EXTRA, CD-TEXTSupported 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 RAMReading speed: CD-ROM: up to 24 times; DVD-ROM: up to 8 times; DVD-ROM (DL): up to 6 timesWriting speed: 24x CD-R, 8x CD-RW, DVDR: up to 8 times; DVDR DL: up to 4 times; DVD-R9: up to 2 4 timesRewrite speed: DVD+RW: up to 4 times; DVD-RW: up to 4 times; CD-RW: up to 10 times; DVD-RAM: up to 3 timesMemory cache: 2MPacking size: 17*17*3cmPacking weight: 370gfeature:1Your CD/DVD driver needs to be installed if the computer does not recognize the external device 2 Please make sure that the laptop power supply is sufficient Insufficient capacity may cause the device not to be recognized 3 Internal DVD media player software has been discontinued for newly released Windows systems, and customers with Windows 10 and above are recommended to install VLC media player to play DVDs and CDs 4 Some external devices require sufficient power to function properly, so be sure to plug the notebook into a power cord or use a powered USB hub on the notebook packing list1 USB CD drive (CD not included)1x User Manual