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ZK-4KX CNC DC DC Buck Boost Converter CC CV 0.5-30V 4A Power Module Adjustable

8pcs LM2596S DC-DC Step-Down Voltage Regulator Input 3.2-35V Output 1.25-34V

ZK-4KX CNC DC DC Buck Boost Converter CC CV 0.5-30V 4A Power Module Adjustable