Content | QC3.0 QC2.0 USB DC-DC Buck Converter Charging Step Down Module 6-32V 9V 12V 24V to Fast Quick Charger Circuit Board 3V 5V 12V Two Channel | Adjustable Micro DC-DC Step Down Converter Module (4.5 - 24 V Input, 0.8 - 17 V Output) | AMS1117 5V to 3.3V DC-DC STEP-DOWN Voltage Regulator Module | Mini AMS1117 5V to 3.3V 800MA DC-DC STEP-DOWN Voltage Regulator Module | Adjustable DC-DC Step Down Power Supply Module With LCD Display | DC automatic step-up and step-down module 2.5V-15V to 5V 600mA fixed output Boost-Buck |
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