Description: This is a multi-function USB OTG Host Hub adapter cable Micro USB for smart phone/tablet with 3 USB 2.0 ports and one Micro USB power supply USB interface can connect to keyboard, mouse, card reader and so on Compatible with all Android tablet and cellphone with OTG function, which with Micro USB port and OTG function Support Samsung Galaxy S4, Samsung Galaxy Note3, ThinkPad 8 achieve OTG mode, charging mode to work simultaneously, the switch should be placed Charge Specification: Type: USB Host Adapter Cable length: 190mm The switch on "Charge" Position: The Micro USB port Can charge the phone or tablet, the OTG function is invalid. The switch on "OTG" Position: The Micro USB port supply power for three USB ports, the OTG function is available. OTG USB HUB data exchange or charging mode, USB interface can be connected to U disk, mouse, keyboard, game controller, printer and other USB devices Package Includes: 1 x 4 in 1 OTG Micro USB Hub adapter Cable