USB Power Hub (12V to 5V)
thingiverse
Quick Charge 3.0 USB power Hub with an input voltage spanning from 8 to 32 volts. This unit contains three identical DC-DC conversion modules, each capable of converting an input voltage between 8 and 32 Volts down to a stable 5V output, as shown in the linked eBay item (https://www.ebay.com/itm/DC-DC-USB-Buck-Converter-Charging-Step-Down-Module-8V-to-32V-Charger-To-5V-QC3-O/173700123725?hash=item2871558c4d:g:PRUAAOSw7q5d5IBD). Additionally, the unit is equipped with a compact 40x40x10mm fan.
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