LaptopPowerSource Blu Ray USB 2.0 External CD / DVD RW Slim Combo Drive (Black) Uses USB 2.0 and HP Uj-120 Chipset Super slim (5.25"X5.25"X.75"), light weight (3.1 oz), and easy to use. No External power required -- the drive is powered by computer via USB cable ! Support DVD and CD Write function. Suitable for Windows 98/Me/2000/XP/VISTA