USB 2.0 HUB 3 Port+sync+charging 1)USB 2.0 hig speed interface, can rapid read the photo within the digital camera. 2)Three high-Speed ports of USB HUB for all USB devices, such as camera, keyboard, card reader.3)USB ports supports hot-swapping plug and play function. 4)PC sync, 5)Charging. 3 port usb hub for ipad/ipad 2