6 Pack LM2596 DC to DC High Efficiency Voltage Regulator 3.2-35V to 1.25-30V ...

DC-DC Mini560 PRO DC Step-Down Regulated Supply Module High Efficiency8507

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High Efficiency 24V12V to 5V 5A Power Converter with Synchronous Rectification

10A Stepping Down Voltages Regulator Module 4V 32V Input With Constant Current

DC-DC Buck 9-35V to 5V 5AStep Down Synchronous Rectification Power Supply Board

Synchronous Rectification Buck Converter 12V to 5V - High Efficiency Module