Cllena Dual USB Charger Socket 42A 12V Power Outlet LED Voltmeter 8 Gang ONOff Toggle Switch MultiFunctions Panel for Car Marine Boat Rv ATV Truck Camper Motorhome Vehicles etc

Specification: Color: Black Material: ABS, Aluminium Plate Voltage: 12V-24V USB Port Output: DC 5V / 4.2A Power Outlet: DC 12V Voltmeter display range: 0 - 30V Overload protection: 12V - 24V, 15A DC Operating Temperature: -25 degree to 80 degree Package Contents: 1 * Multi-Functions Panel 4 * Screws NOTE: Regarding the each usb port 2.1A, it meant the maxi ampere of each usb port is 2.1A, if your device has no 2.1A itself, you use the ammeter could not test 2.1A. and you can use the device has 2.1 itself, for example: you can use ipad to test it, it can prove each usb port is 2.1A.