Charge the battery and transfer data with your smartphone using the optimal speed. The maximum possible speed is 5 Gbps. • USB-A 3.2 Gen 1 - USB-C 3.2 Gen 1 • Maximum current transfer up to 3A Allows you to connect a PC, laptop, Macbook, charger with an external hard drive, tablet, smartphone, Power Pack, Bluetooth speaker or gamepad, for the transmission of data and digital signals, as well.