Add to Cart USB Module - Single - In 6-24V, Out 5V 2.1A | QSKJ OSKJ Regular Price: Now: $2.99 Regular Price: Single Port USB Converter Module - Input 6-24V, Output 5V 2.1A Use this USB module combined with our battery adapters and .stl files to make a portable usb power supply... Regular Price: Now: $2.99 Regular Price: Add to Cart