A8 6410 Cpu Amd Mini Itx Embedded Industrial Pc Mainboard Support Watchdog For Ad Player - Buy Motherboards,Pos Motherboard,Industrial Motherboard Product on Alibaba.com
Used Mini-itx For Asus Rog Strix X570-i Gaming Motherboard Socket Am4 For Amd X570 Original Desktop Pci-e 4.0 M.2 Mainboard - Motherboards - AliExpress
B550M-ITX/ac AM4 Mini-ITX Motherboard
ASRock Rack X570D4I-2T AMD Ryzen Server in mITX - ServeTheHome
The ASRock A320TM-ITX Motherboard: Thin-ITX For AMD APUs
Mini Itx Motherboard With Onboard Cpu Intel Amd E300 Dual Chipset Fan Mainboard - Buy Motherboard With Onboard Cpu,Motherboard,Mainboard Product on Alibaba.com
To-scale rendition of what a TR4 mini ITX board might look like that I made in photoshop (Threadripper) : r/Amd