2 Channel USB QC3.0 QC2.0 DC-DC Buck Converter Charging Step Down Module 6-32V 9V 12V 24V to Fast Quick Charger Circuit Board

From the shop's description

This is 2 Channel USB QC3.0 QC2.0 DC-DC Buck Converter Charging Step Down Module 6-32V 9V 12V 24V to Fast Quick Charger Circuit Board. DC-DC buck converters are known for their high efficiency in converting higher voltages to lower ones. This efficiency helps minimize power loss during the conversion process. Applications: Suitable for DIY projects, portable chargers, automotive applications, or any scenario where efficient and fast USB charging is required. Note: The actual product may vary in slight variation with the image shown depending upon quantity availability. Features: Two channels, allowing you to simultaneously charge two USB devices. Supports Quick Charge 3.0 (QC3.0) and Quick Charge 2.0 (QC2.0) standards. Accepts input voltages in the range of 6-32V. This flexibility allows the module to be used in various applications with different power sources, such as automotive systems (12V), power adapters, or other DC power supplies. Package Includes: 1 x 2 Channel USB QC3.0 QC2.0 DC-DC Buck Converter Charging Step Down Module 6-32V 9V 12V 24V to Fast Quick Charger Circuit Board