5Pcs/1Pc DC-DC Step-Down Buck Converter Voltage Regulator Board Dual Dc ± 5V 9V 12V 15V 18V To 7.5-28V 1A Power Supply Module

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5Pcs/1pc DC-DC Step-Down Buck Converter Voltage Regulator Board Dual DC ± 5V 9V 12V 15V 18V to 7.5-…

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2,24$ 2,99 $

5Pcs/1pc DC-DC Step-Down Buck Converter Voltage Regulator Board Dual DC ± 5V 9V 12V 15V 18V to 7.5-28V 1A Power Supply Module