Charges two devices simultaneously. The total output 4.8A load is split 2.4A per side as needed. Charge phones, pads, and tablets quickly and efficiently. Protective dust cap included. Aluminum and nylon with terminal spade contacts. A 1-7/16" B 1-1/2" C 1-1/16" Input 9-32 VDC Output 5V/4.8A