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HW-132 USB Buck Boost Adjustable DC 3.5-12V To 1.2-24V Power Supply Voltage Regulator – Star International
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USB Adjustable DC-DC Converter 3W - with Voltage Meter - USBADJDCDC3WSEGMENT
5PCS DC to DC 3A Step Down Module (13276) from ICStation on Tindie
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DC to DC Adjustable Step Up Voltage Regulator
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DC-DC 5V To 3.5V/9V/12V LCD USB Step UP/ Down Desktop Power Supply Module Adjustable Boost Buck Converter Voltmeter Out 1.2V-24V
TISHRIC USB Step UP Down Power Supply Module Boost Buck Converter DC-DC 5V to 3.3
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DC-DC 5V to 3.5V / 12V USB Step UP / Down Power Supply Module Adjustable Boost Buck Converter Out DC 1.2V-24V - AliExpress
Input Current: 8A (MAX) Peak 10A (can use in Long working hours when input Current :< = 6A). 1 x DC-DC 8A Automatic Step Up Step Down Adjustable Power
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TISHRIC USB Step UP Down Power Supply Module Boost Buck Converter Adjustable Out DC 1.2V-24V DC-DC 5V to 3.3V 12V - AliExpress