Asus C621E SAGE EEB WS Workstation Motherboard (2x CPU Support, 1x M.2, 2x Intel Gigabit LAN, 4-Way SLI & CrossFireX)
Intel® C621 Motherboard with Quad-Strength Graphics Support and 12 DDR4 Memory Slots

Specifications

Form Factor - EEB
CPU Socket - 2x 3647
Chipset - Intel C621
Memory Type - DDR4
Memory Type - ECC/Non-ECC
Memory Speed - 2400Mhz / 2666Mhz
Max Memory Capacity - 768GB (12x64GB)

Expansion Slots 
  • 1 x M.2, 2242/2260/2280/22110, PCIe/SATA
  • 5 x PCIe 3.0 x16
  • 2 x PCIe 3.0 x16 (x8 Bandwidth)
Internal I/O 
  • 1 x 24-pin (Power)
  • 2 x 4-pin CPU Fan Connector
  • 7 x 4-pin System Fan Connector
  • 1 x 6-pin PCIe (Power)
  • 2 x 8-pin (Power)
  • 1 x Auxiliary Panel Header
  • 1 x Chassis Intrusion connector
  • 1 x Front Panel Audio Header
  • 1 x Power button
  • 1 x Reset Button
  • 10 x SATA III - 6Gb/s
  • 1 x Serial (COM) Header
  • 1 x SMBus header
  • 1 x System panel connector
  • 1 x TPM Header
  • 4 x U.2 Connector
  • 1 x USB 2.0 Header
  • 2 x USB 3.1 Gen1 Header
  • 1 x VGA connector
  • 1 x VROC_HW_Key
Rear I/O Connectors 

2 x Intel® I210AT 10/100/1000 (LAN)
2 x Audio I/O (Realtek ALC S1220A 7.1)
1 x Line In
1 x Line Out
1 x Mic-In
1 x PS/2 Keyboard/Mouse Combo
2 x RJ-45
1 x S/PDIF-Out (Optical)
2 x USB 2.0
4 x USB 3.1 Gen1 Type-A
1 x USB 3.1 Gen2 Type-A
1 x USB 3.1 Gen2 Type-C
1 x USB BIOS Flashback Button