Max length a USB-C charge cable can be for a Mac Mini 2018? The cables from Apple come in only a 1 and 2 meter length. Can you use longer and still power the Mac Mini 2018 properly?
The Mac Mini 2018 according to the Apple website and AppleCare uses a
USB-C Charge Cable that is connected to a USB-C Power Adapter:
https://www.apple.com/shop/mac/mac-accessories/power-cables?page=1&amp;f=macmini_thdblt3_late2018&amp;fh=4595%2B4a95
No USB-C cable powers a Mac mini properly. USB is direct current, low voltage.

Mini operates from mains power of 110 or 220 VAC.