NeweggBusiness - Supermicro MBD-M12SWA-TF-O AMD Ryzen Threadripper PRO Workstation 5000WX/3000WX Series EATX Motherboard, Up To 64-Core, Socket sWRX8/SP3, WRX80 Chipset, with 8 DDR4 DIMM Slots
ASRock Motherboard TRX40 Taichi With AMD Ryzen Threadripper sTRX4 TRX40 Max 256GB DR4 ATX - AliExpress
Motherboard for Ryzen Threadripper 3970X CPU + ROG STRIX TRX40-XE GAMING Mainboard + 8x32GB DDR4 2666V RAM - AliExpress