Kool(TM) 4 in 1 Black Micro USB HUB Dual Port OTG Cable Adapter Power Supply Port For Samsung Galaxy S5 S4 S3 S2 / Samsung Galaxy Note 3 2 1 / Samsung Galaxy Tab 3 7.0/8.0/10.1 / Sony Xperia / Smartphones / Tablets Black Micro USB HUB with two OTG Ports and a Single Power Adapter Port for you to connect a Original USB Power Adapter to Supply Extra Charge / Power if necessary for OTG Ports Connect keyboards, mouse, and external storage via OTG Ports Simple Plug and Sync Supports any OTG Devices with USB 2.0 Connection Use the original Samsung 5V/2A USB Charger & Micro USB Cable to power the HUB