Features:
--This power supply is DC 5V 4A. It take any input from 100V up to 240V AC, which is what comes out of your wall socket, and output 5V DC for the devices that require 5V 4A input.
--Third generation smart IC chip features short circuit protection, overload protection, over voltage protection to protect your device.

Specifications:
Input Voltage: 100-240V AC 50/60Hz
Output Voltage: 5V DC
Output current: 4A
Output Power: 20W Max
Pole of DC plug: center positive(+), outside negative (-)
DC Cable length: about 3.6FT / 110cm . Power Cord about 3.9FT / 120cm
DC Output Plug Size: 5.5mm x 2.5mm ( Compatible with 5.5mm x 2.1mm Plug )
It perfect replacement for 2A / 2.5A / 3A as amperage isnt forced. (If your previous Adaptor was less than 4A then this will be a perfect replacement as amperage is NOT Forced).

Compatible with
--WeBoost 850012 , WeBoost connect RV 65, Jetson Nano, Atomic Pi, USB Hub,Odroid XU4 / XU4Q..
--Compatible with 5V USB 3.0 Universal Laptop Dual Monitor Docking Station , Compatible with 5V 7 Port USB 2.0 Hub Tower.
--5V Electronic Product and Can replace 5V 4A Power Supply of the barrel size 2.1mmx5.5mm / 2.5mmx5.5mm

Package:
1 x DC 5V 4A Power Supply
1 x AC Power Cord