USB 4-Port Step Down Power Supply Module

Version 1 - Front
Version 1 Rear
Version 2

DC Buck Step Down 4-Port USB Power Supply Module based on the KGCOMP KIM-055L convertor. The KIM-055L is a voltage switching regulator providing capable of driving a 5A (max.8A) load with good performance and economic DCDC convertor. It uses KGCOMP power module with minimum components to provide simple 5V 5A reliable output. 2x capacitors 270uF 16v & 470uF 35v to provide guard noise filter at input and output

The TPS40057 chip:

Texas Instruments Datasheet:

Specification Version 1: Specification Version 2: