External DVD drive with CD burner (COMBO), USB interface, CD, VCD, DVD, MP3 disc are readable.Power saving design, extra strong error correction, shockproof and low noise.Suitable for laptops or PC.USB power supply, no external power supply.Adopt chip, can be used to boot the installation system.Type: Optical DriveMaterial: ABSOptical Drive Type: COMBO DVD-ROMInterface Type: USB2.0DVD Reading Speed: 8XCD Reading Speed: 24XBurn CD Speed: 24X, DVD Does Not Support BurningCache: 2MVoltage: 5VInterface: USB 2.0, Backward Compatible with USB 1.0/1.1Support System: for Windows98/ME/2000/Xp/VISTA/WIN7, for Mac OS 8.6 and aboveFeatures: External, Easy to Use, PortableSupport Disc Size: 12cm/4.72", 8cm/3.15" (Approx.)Size: 135mm x 135.5mmx 18mm/5.31" x 5.33" x 0.71" (Approx.)Notes:Due to the light and screen setting difference, the color of item may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Optical Drive1 x Data Cable1 x Power Supply Cable