This is the latest one, as i confirmed with alex crespi from uptone directly. I used this late 2014 mac mini as my roon core as well as end point (with a reclocker i'm also selling) to great effect spec is indicated in images below and also a link to the uptone audio conversion that this mac has seen. Has anyone tried the uptone mac mini dc conversion kit
The kit includes a board that bypasses the internal switching power supply and allows you to connect to an external lps.
Any +12vdc power supply capable of delivering at least 4.5 amps of current will be able to power your uptone mmk converted mac mini