Multifunctional Optical DriveUSB 3.0/ Type-C dual interface, an SD/TF card slot and USB 3.0 ports x 2, USB 3.0 brings you 5Gbps faster data transfer speed, extra 2 x USB 3.0 ports can be used for plugging U-disk, charging or other USB devices. Support SD/TF card(two cards cannot be read at the same time).^ High Speed DVD DriveUSB3.0 Speed and backwards compatible with USB2.0, bringing faster data transmission speed (up to a maximum of 5Gbps).^ Type-C / USB 3.0 External DVD DriveTwo kinds of interface -Type C and USB 3.0 are used for this external dvd drive to provide more compatibility for laptops/desktop/MAC/iMac. It compatible with usb 3.0 and backwards compatible with USB2.0 USB1.0,and perfectly adapt to USB C interface.^ Power & Transfer 2 in 1 Product has a A+C to Micro-B 2-in-1 cable(A to Micro-B/C to Micro-B) which can provide stable power and data transfer. The product is powered by USB or Type-C, plug and play. No need to install any drivers. Then you can enjoy your wonderful time.3.5 Inch hard drive need external power supply.^ Wide Compatibility It supports Windows XP/2003/Vista/7/8.1/10/11, Linux, all version Mac OS system, USB 3.0 & USB 2.0. For the desktops, laptop, Mac.