The MMK converts a Mac mini to operate on external 12V DC power by replacing the computer's stock switch-mode power supply with a circuit board that fits perfectly in the space vacated by the SMPS.  There is no soldering and no cutting of wires required, the procedure is completely reversible, and a toolkit with detailed instructions is provided. The MMK also provides a carefully chosen amount of filtering.

For modern Apple Mac minis (model years 2010, 2011, 2012, and 2014.  The MMK is not currently compatible with Mac mini model years 2018 or 2020. An external 12V power supply is required.

https://uptoneaudio.com/products/mac-mini-dc-conversion-linear-fan-controller-kit-mmk

A 5-ft DC cable and the is Included and a coaxial/SMA jack for connection of a cable to support the pseudo-Kelvin-sense feedback circuit of the UpTone AudioJS-2 Power supply.

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