USB (5V) to Dual Output +/-15V or +/-12V Step-Up DC-DC Converter

24v Converter Power Supply Module Dc Dual Dc Converter Dual Output - 5v 6v 9v 12v - Aliexpress

USB 5V to DC PIN 5.5 x 2.1mm - 9V & 12V Step up Converter - Router UPS Power Supply (5V to 9V / 12V Dual Select)

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20W +- 5V 6V 9V 10V 12V 15V 24V Positive & Negative Dual Output Power Supply DC DC Step-up Boost-Buck Converter module

USB (5V) TO DUAL OUTPUT +/-15V OR +/-12V STEP-UP DC-DC CONVERTER

XMSJSIY 12V 36V 48V to 5V USB Step-Down Converter DC Buck Module Adapter 10-55V to 5V USB/Micro USB 3A 15W DC to DC Regulator Car Power Converter : : Electronics

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XY-016 DC-DC Step Up 2A 5V/9V/12V/28V Power Module with Micro USB

Product, SKU, Click Picture, Description, Boost-Buck, + to - voltage, DD0315NA, Input voltage : DC +3~+15V,, Output : DC -3.3V -5V -6V -9V -12V

20W +- 5V 6V 9V 10V 12V 15V 24V Positive & Negative Dual Output Power Supply DC DC Step-up Boost-Buck Converter module