5 IN 1 External DVD Drive- Since most latest laptops have not been added to the built-in CD/DVD drive, an external cd drive becomes a must. External CD DVD drive for laptop has an independent TF card slot and SD card slot ,and also equipments with USB 3.0 port, USB 2.0 port and micro port. These USB ports can be used to connect the U disk and charge your phone or other electronic devices. The TF/SD card slots are perfect for transferring photo and video files by your camera from cards to your computer(NOTE: SD card slot and TF card slot cannot be used at the same time) USB 3.0 HIGH-SPEED DATA TRANSFER- External cd drive with high speed USB 3.0 technology, these 2 USB 3.0 ports are labelled by blue colour and backward compatible with USB 2.0 / 1.0. USB 3.0 cd burner brings you faster data transmission speed (up to a maximum of 5Gbps).The cd drive offers Max 8x DVD Write/Read Speed and Max 24x CD Write/Read speed, faster than you expected.