The external drive is powered by USB without outer power supply.It has features of anti-shock and low noise.It is compatible for Windows 98SE/ME/2000/XP/Win7/Vista/Win10, for MAC OS8.6 or higher version.Item Name: External Optical DriveMaterial: ABS, MetalReading Speed: DVD: 8X, CD: 24XBurning Speed: CD: 24X, DVD: No BurningCache: 2MVoltage: 5VInterface: USB 2.0, Compatible with USB 1.0/1.1Drive Type: COMBO DVD-ROMDrive 12cm/8cmCompatible: for Windows 98SE/ME/2000/XP/Win7/Vista/Win10, for MAC OS8.6 or Higher VersionFeatures: Fast Reading Speed, Plug and Play, Large CompatibilitySize: 16.5cm x 16.5cm x 2.5cm/6.5" x 6.5" x 0.98" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x External Optical Drive1 x USB Power Cable1 x USB Cable