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30V~10A Auto Step-Up/Step-Down DC-DC Converter Module – HandsOn Tech
DC Buck Converter DC-DC Step Down Voltage 5V-36V to 1.2V-32V Buck Converter Reducer Power Supply Module Supply Module with LED Display USB Output & Mode - Walmart.com
BIGTREETECH DC-DC Stepdown Module - 3DJake International
Mini560 Step-Down Stabilized Voltage Power Supply Module DC-DC Output – ImportedElectronics.com
DC-DC Fast Charge Module 6~32V to 5V/3A - DFRobot
DC to DC Adjustable Step Up Boost Converter Power Supply Module Voltage Regulator DC 3-35V
Module DC/DC step-down 1,25-32V/5A, USB, LED display | GM electronic COM