X12SPM-LN4F S4189 DDR4 w/4xGLN mATX Motherboard
Socket P+ / LGA 4189 - 1 CPU(s) Max. - Intel C621A Chipset - 8 RAM Slots - Max. 2048GB DDR4 - Aspeed AST2600 Graphics - 1x VGA Ports - 2x PCIe 4.0 x16 Slots - 1x PCIeX8 Slots - 1x PCIe 4.0 x8 Slots - 10x SATA 6.0Gbps - RAID 0/1/5/10 Supported - 1 PCIe 3.0 x4/SATA (22x80/22x110) M-Key M.2 PCIe/SATA Ports - Intel i350-AM4 Quad Gigabit LAN - MicroATX (9.6" x 9.6") Form Factor - IPMI 2.0 - 1 Year Depot Carry-In Mfg. Warranty

X12SPA-TF Workstation Motherboard w/ dual 10G-LAN IPMI (retail box)
Socket P+ / LGA 4189 - 1 CPU(s) Max. - Intel C621A Chipset - 16 RAM Slots - Max. 4096GB DDR4 ECC RDIMM/LRDIMM - Aspeed AST2500 Graphics - 1x VGA Ports - 4x PCIeX16 Slots - 3x PCIeX8 Slots - 8x SATA 6.0Gbps - RAID 0/1/5/10 Supported - 4 M.2 PCIe Ports - Intel i210-AT Gigabit + Marvel AQC113 10Gb Ethernet LAN - 7.1 HD Audio - Extended ATX/eATX (12.0" x 13.0") Form Factor - IPMI 2.0 ( via VGA port) - 1 Year Depot Carry-In Mfg. Warranty