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
Intel Xeon W Workstation Processor Family With Up To 18 Core Launched