I have an Asrock DESKMINI A300 with a Ryzen 5 3400g. I noticed that there is the newer Asrock DESKMINI X300 that supports Ryzen 4000 APUs and even looks better IMO. I
The Smallest Ryzen Yet: Asrock DeskMini A300 Review | TechSpot
The ASRock DeskMini A300 Review: An Affordable DIY AMD Ryzen mini-PC
ASRock Confirms Support for Ryzen 3000 APUs in DeskMini A300 SFF System : r/Amd