This USB sync/charge cable (M/M) connects your smartphone, tablet, MacBook Pro, Windows laptop or other USB-C device to the USB-A port on a computer, wall charger or car charger. It supports power output up to 3 amps (60 watts), which is sufficient for fast charging and powering most mobile devices. It also simultaneously synchronizes and transfers data at USB 2.0 speeds up to 480 Mbps.