Pulled from working server ASRock Rack X299 WS/IPMI - Motherboard - ATX - LGA2066 Socket - X299 - USB 3.0, USB 3.1 Gen 1, USB-C Gen2, USB 3.1 Gen 2 - 2 x Gigabit LAN - onboard graphics - HD Audio. 2 x PCIe 3.0 x16 (x16 mode (x8 mode if neighbour slot is occupied)).