Supermicro X11SRM-VF Motherboard mATX for single Intel Xeon Processor W family, Socket R4 LGA 2066, up to 128GB ECC RDIMM or 256GB ECC LRDIMM | Wiredzone
Big Sockets - The monstrous Intel LGA 3647 socket and package
W-2195 Cpu Intel Xeon W 2195 Cpu Processor 2.3ghz 18-cores 36-threads 24.75m Cache 140w Lga-2066 Socket For Imac Pro 2017 - Motherboards - AliExpress