* Share your power, save USB port.
* Cellphone / Android System Pad can use this cable to connect USB flash drive, USB mouse, USB keyboard, external hard disk, etc.
* The Android devices can read USB flash drive directly by using this cable.
* Use two OTG cables can charge between two cellphones. Long press the OTG button for 3 seconds.
* Can connect Android devices to output 5V voltage to be used as a power bank.