Charge your devices up to 4X faster than other conventional car chargers with Scud-30, a 30W heavy duty car charger with 2 ultra-fast charging ports. The QC 3.0 port is engineered to be up to 45% more efficient than Quick Charge 2.0. The USB charging ports built into Scud-30 adapt to your devices to provide the safest maximum charging output per port.