Yosoo 4 in 1 Micro USB OTG Cable Cord Adapter, Micro USB Hub USB OTG Extension Adapter Connector for Android Smartphone and Tablet Compatible with most android smart phone OTG port provides a simple way to connect phone to a USB capable computer for data synchronization and file transfers. Supports supply extra power through micro USB port if necessary.(Please take note:Extra power only charge for accessories such as mouse keyboard etc,can not charge for smartphone or tablet Only suitable for the devices which its micro-B USB connector enable USB 2.0 hostor USB OTG function