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DC-DC Converter Module, DC-DC Voltage Converter Multi Output Buck Power Module 12V to 3.3V/5V/12V : Industrial & Scientific - Amazon.co.jp
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Amazon.co.jp: DC-DC Converter Module, DC-DC Back Module DC-DC Step-Down Converter Adjustable Power Supply Module 6.5V-60V-1.25-30V 10A : Industrial & Scientific
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