Specifications: 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 Drive Material: ABS Optical Drive Type: COMBO DVD-ROM Interface Type: USB2.0 DVD Reading Speed: 8X CD Reading Speed: 24X Burn CD Speed: 24X, DVD Does Not Support Burning Cache: 2M Voltage: 5V Interface: USB 2.0, Backward Compatible with USB 1.0/1.1 Support System: for Windows98/ME/2000/Xp/VISTA/WIN7, for Mac OS 8.6 and above Features: External, Easy to Use, Portable Support 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 Drive 1 x Data Cable 1 x Power Supply Cable