Product Review

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.