This hub will allow you to increase the connectivity of your tablet or smartphone with android 40 or higher providing additional four ports usb 20 you will no longer have trouble connecting a pen drive usb 3g modem keyboard mouse etc to your device this device increases connectivity for your tablet or smartphone adding four usb ports from a micro usb port usb on the go also known as usb otg is a usb 20 extension that allows more flexibility to usb devices with regards to the management of the us