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.