Features: 1. Plug and for play wherever there is USB; Support interface: USB3.0 USB2.0 2. Ultra-thin and ultra-light, classic appearance design 3. Both plug and for play, avoid any complicated installation procedures 4. The CD Writer has 4 USB ports You can use USB ports and TF card reader at the same for time. 5. easy to carry, take it to help your friends install the system 6. Circuit optimization design saves energy and low power consumption, no need for external power supply Specifications: Item: DVD CD Writer Material: ABS Size:approx 14.5x15.5x1.5cm/5.71x6.1x0.59in Data interface: USB3.0+TypeC Burning function: support CD/DVD/VCD Expansion interface: TF USB3.0x2 Error correction function: support error correction Installable system: WIn7/8/10/11 Support system: MacOS/Win98/ME/2000/XP/WIn7/8/10/11 Recording speed: CD R 24X/ CD 24X /DVD-R 8X / DVD 6X/ DVD 4X/ DVD 9 4X Reading speed: CD RO for M 24X/ DVD RO for M 8X DVD-9 6X DVD 4X Note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, Thank you There might be 0-1cm error due to the manual measurment Package includes: 1x USB DVD Burnner