Features: Compatible with all tablets and cellphones with OTG function, such as Samsung Galaxy S3/S4/Tab 3,2, Note 10.1 and so on. *Three ports with USB design can connect the keyboard, mouse, card reader, and so on (can't be connected to hard disk). *One power USB port can connect original charger to supply power for flash disk, card reader, mouse, keyboard and so on. *When OTG mode and charging mode can work simultaneously, the switch should be placed to Charge. Micro-USB Power can charge your tablet and smart phone simultaneously. *Portable and practical, greatly save your working space and can be easily taken to everywhere. Specifications: *For most Android models: Support Galaxy S2, Samsung Galaxy Note, Samsung Galaxy S3/S4/S5, GALAXY Tab3 8.0, Sony XperiaNX-02D, Sony Xperia acro HDIS12S, Toshiba REGZA Phone-T01D, and Sony S-series Tablet, other models. *OTG USB HUB data exchange or charging mode: USB interface can be connected to the U disk, mouse, keyboard, gamepad, printers and other USB devices simultaneously. When the switch is in “Charge”, achieved through an external power supply to charge the phone function. When the switch is placed “OTG”, the phone can read three external USB devices simultaneously. *Charging mode and data exchange mode can work simultaneously: Only works for some models of Samsung, as Samsung Galaxy S4, Galaxy Note3, ThinkPad 8. When it is in this case, you must place the switch to Charge. *Color: Black (As pictures show) *Length: approx. 20cm Package contents: 1 * 4-Port Micro USB Power Charging OTG Hub Cable Note:The real color of the item may be slightly different from the picturesshown on website caused by many factors such as brightness of yourmonitor and light brightness.