GIGABYTE MS73-HB1 Server Motherboard Socket E LGA 4677 4th Gen. Intel® Xeon® Scalable DP Motherboard - Newegg.com
Supermicro Server Motherboard MBD-X13SEM-TF-O, 4th Gen Intel® Xeon® Scalable processors Single Socket LGA-4677, Up to 2TB 3DS ECC RDIMM, DDR5-4800MT/s (1DPC) in 8 DIMM slots mATX. - Newegg.com
GIGABYTE 4th-Gen Intel Xeon-Supported Servers and Server Motherboards Announced - StorageReview.com
MBD-X8QBE-LF-O SuperMicro Server Motherboard
Only HP has it « TechOpsGuys.com
Amazon.com: MACHINIST LGA 1150 Motherboard, H81 Micro ATX Intel 4th Gen Gaming Motherboard for Desktop PC Support 1333/1600MHz DDR3 Dual Channel Max 16G, i3 i5 i7/Xeon E3 V3 Processor, NGFF M.2, SATA