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DC 5-30V CNC Stepper Motor Controller, 1/128 Micro-Step Resolution Forward Reverse Delay Time Angle Speed Adjustable Stepper Motor Control Module with HD Display Suit for Nema17/23 Motor - Motor Driver Module

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Step Up/Down Module – diymore

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DC Step Down Module Power Supply Buck Converter Non-isolated Stabilizer 9V 12V 24V 36V 48V 72V 120V to 5V 3A - Step Down Module - Arduino, Robotics, Raspberry Pi, ESP8266, Learning DIY

Step Up/Down Module - Arduino, Robotics, Raspberry Pi, ESP8266, Learning DIY, Development board ICStation

DC DC 9A 300W Step Down Buck Converter 5-40V To 1.2-35V Power Module For Arduino–OKY3497-4 – OKYSTAR

400W Constant Current Boost Converter Step-up Power Module – Makerlab Electronics

DC-DC 400W High-power Step Down Buck Converter DC10-60V Constant Voltage Current

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DC-DC 400W High-power Step Down Buck Converter DC 10V-60V Constant Voltage Constant Current