... SDUltra Card, Mini SD ,SD(HC),SD(XC), MultiMedia Card (MMC),MMC 4.0, RS MMC , ... USB HUB for all USB Device connecting to your ipad.5)Can connect any large current USB devices, such as camera, keyboard.6)USB ... what you want to upload.2.Support the USB keyboard, U-disk, digital-camera,your iphone ... keyboard,but some keyboard large current needinput the USB DC cable to the COMBO. card reader with 2 usb hub ...