No External power required -- the drive is powered by computer via USB cable !
However, if your USB port doesn't support enough power, you need to plug additional external power (use the provided additional cable).
This external drive uses USB 2.0 and is backward compatible with USB 1.1.
Super slim, light weight, and easy to use.
Plug-n-play, no need to reboot computer when use.
Support DVD and CD Write function.
Technical Features:
Suitable for Windows 98/Me/2000/XP/VISTA
Suitable for notebooks, mobile PC's, and Desktop PC's, laptop
ITEM(S) INCLUDED:
USB 2.0 portable Drive , USB Cable,
Power cable, User's Manual ,Nylon bag