Cllena Dual USB Socket Charger 2.1A&2.1A + LED Voltmeter + 12V Power Outlet + 5 Gang ON-Off Toggle Switch Multi-Functions Panel for Car Marine Boat RV Truck Camper Vehicles (Green)
Brand: Cllena
Color: 5 Gang Switch Function Panel - Green

Specification:
Color: Black
Material: ABS, Aluminium Plate
Voltage: 12V-24V
USB socket output: DC 5V / 4.2A
Power outlet: DC 12V
Voltmeter display range: 0 - 24V
Overload protection: 12V - 24V, 15A DC
Operating Temperature: -25 degree to 80 degree
Package Contents:
1 * Multi-Functions Panel
1 * Labels
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.

Multi-Functions Panel; Dual USB Socket + Voltmeter + 12V Outlet + 5 Toggle Switches
USB socket output: DC 5V / 4.2A; Power outlet: DC 12V; Voltmeter display range: 0 - 24V
5 Green LED Toggle Switches have Overload, Over-current and Short Circuit Protection.
Small size and excellent performance. Easy to install, convenient to use. Widely used for car, truck, Rv, ATV, boat, etc.
Suitable for 12V/24V Systems, Panel is pre-wired, Includes 4x Stainless Steel Screw.