No external drive or power supply required. Just plug it into your USB port and the DVD drive will be detected ^^ The USB 3.0 CD drive offers faster data transfer speeds up to 5Gbps. It is backward compatible with USB 2.0. ^^ The external CD drive supports reading CDs, VCDs, SVCDs, 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, supports any PC, Ultrabook and Netbook ^^ Compatible with Windows 2000 / XP / 2003 / Vista / 7 / 8.1 / 10, Linux and all versions of Mac OS system, supports any PC, Ultrabook and Netbook