Description: Interface A:USB 3.0/Micro USB Interface Interface B: 1 * USB 3.0 HUB , 1*SD Card reader 1*TF Card Reader Support for Laptop(USB), tablet, phone(Micro USB) with OTG function 5Gbps high speed transmission Plug and play; Hot swapping; USB-powered (no external power or battery needed) Support Windows 2000/2003/ME/XP/Vista/WIN 7/8/10 or Mac OS 8.1 or above Specification: Material: Aluminum Size:57x47x10mm Package Includes: 1Piece Usb 3.0 Hub With Card Reader Note: SD Card is not include