Supermicro's new X10DAi workstation motherboard can run three video cards, tops out at 1TB of DDR4 RAM, and uses the latest Intel Haswell-EP processors.
Model Number: SUPER X10DAi
Socket Type: LGA 2011-V3
Chipset Manufacturer: Intel C612
Memory Type: DDR4 ECC
Supports Display Output:
Ports: 6xUSB3.0
Expansion Slots: 3xPCI-E3.0x16, 2xPCI-E3.0x8, 1xPCI-E2.0x4
Hard Drive Interface: 10×SATAIII