Server-grade mini PCs: ASRock reveals "Deep mini-ITX" motherboards with AMD EPYC Rome CPU support - NotebookCheck.net News
Z590I VISION D - $258 - GIGABYTE Z590I VISION D WIFI FCLGA1200 Mini ITX Motherboard : 2 x DDR4 Slots, 2 x PCIe 3.0 x16 Slots, 1 x PCIe x16 Slot, 4 x SATA III Slots 7.1-Channel Audio
I hope they finally make Threadripper ITX boards : r/Amd
ASRock B550 PHANTOM GAMING-ITX/AX Mini-ITX Motherboard Socket AM4 Ryzen 3rd Gen DDR4 5400 (Max 64GB) USB 3.2 Gen 2 2.5G LAN
Jam 80 Cores, 768GB of RAM into E-ATX Case With This Tiny Board | Tom's Hardware
Amazon.com: ASROCK H570M-ITX/AC Intel SOCKET1200 for Intel 10TH/11TH GEN CORE : Electronics