... MMC,M2, TF 3,3 ports hub 4,Combo usb All in one card reader for samsung Feature:Combo usb hub ... USB2.0 card reader6.1 x SD (HC)/MMC, 1 x MS, 1 x TF/Micro SD, 1 x M2 card reader7.Can ... rate. 2.Two High-Speed Ports of USB HUB for all USB Device connecting to computer. 3.USB ports supports ... hot-swapping Plug-and-Play function. 4.Can also all USB device connected in computer Working at the same time ...