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Memory Type DDR4 RDIMM/LRDIMM Memory Channel Octa (8) Memory Type (ECC) Memory Type (R/U) RDIMM / LRDIMM / LRDIMM 3DS Memory Speed (Mhz) DDR4 - 2666 DDR4 - 2933 DDR4 - 3200 Max. Memory Capacity 2048GB Primary GPU Interface PCIe 4.0 (x16) [PCIe 3.0 Backwards Compatible], Expansion Slots 1 x M.2, 22-42/60/80/110, PCIe/SATA 2 x PCIe 3.0 x16 1 x PCIe 3.0 x8 1 x PCIe 4.0 x16 (x8 Bandwidth) 1 x PCIe 4.0 x8

P12R-M/LGA-1200,C252,MICROATX, 4*DIMM, 1*PCIe x8 slot, 1*PCIe 16 slot, 6*SATA ports, 1*M2, 1 x Dual Port Intel X710-AT2 + 1 x Mgmt LAN, ASMB10

AMD Epyc (ROME) SP, TDP 225W/ C-TDP 240W, 16DIMM, 2PCIe Gen 4+3PCIe Gen3+1OCP2.0 Gen4, M.2, 16SATA+6Oculink Ports, Dual i350+Mgt LAN, EEB(12"x13")

Intel 2x Socket P (LGA 3647) , C621, 16DIMM, 6PCIe+1OCP, 11SATA+2M.2, 1x Dual i350+1Mgt LAN, IPMI, EEB(12"*13")

Intel LGA2066 socket, C422, 8DIMM, 4PCIe, 6SATA, 1M2(2280), 1*Intel GbE I210-AT, ATX

Socket Intel 1151 v2 chipset Intel C246 RAM 4x DDR4 DIMM, dual PC4-21300E/​DDR4-2666, max. 128GB (UDIMM) Extension slots 1x PCIe 3.0 x16, 2x PCIe 3.0 x8 (1x x8, 1x x4), 1x MIO slot, 1x PCI (ASM1083), 1x M.2/​M-Key (PCIe 3.0 x2/​SATA, 22110/​2280/​2260/​2242), 1x M.2/​M-Key (PCIe 3.0 x1/​SATA, 22110/​2280/​2260/​2242), 1x SFF-8643/​U.2/​Mini-SAS (SATA) external connectors 1x VGA (AST2500), 2x USB-A 3.1 (10Gb/​s, C246), 2x USB-A 3.0 (5Gb/​s), 4x Gb LAN (Intel I210-AT), 1x management port (RJ-45) Internal connectors 1x USB 3.0 Header (5Gb/​s, 2x USB 3.0), 1x USB-A 2.0 socket (480Mb/​s), 1x USB 2.0 header (480Mb/​s, 2x USB 2.0), 4x SATA 6Gb/s (C246), 4x SATA 6Gb/s (via SFF-8643/​U.2/​Mini-SAS, C246), 2x serial, 1x TPM-Header, 1x card reader (microSD) Audio 7.1 (Realtek ALC892) Graphics ASPEED AST2500 (onboard)

Dual AMD EPYC™ 7002 series processor family 8-Channel RDIMM/LRDIMM DDR4 per processor, 16 x DIMMs 2 x 10Gb/s BASE-T LAN ports (Broadcom® BCM57416) 1 x Dedicated management port 4 x 7-pin SATA 6Gb/s ports 3 x SlimSAS (with 12 x SATA 6Gb/s or 3 x NVMe PCIe Gen4 x4) ports 2 x SlimSAS (with 2 x NVMe PCIe Gen4 x4) ports 1 x Ultra-Fast M.2 with PCIe Gen4 x4 bandwidth Up to 5 x PCIe Gen4 slots

Intel® Xeon® E-21XXX (95W), C242, 4DIMM, 2 Intel i210AT+1Mgt LAN, 6 SATA, 1 M.2(2280), 1 PCIe x16, 2 U3.1, mini-ITX

Intel® Xeon® E-21XXX (95W), C242, 4DIMM, 2 Intel i210AT+1Mgt LAN, 6 SATA, 2 M.2, 1 PCIe x16+ 1 PCIe x8+2 PCI, 2 U3.1, ATX

Intel 2xSocket P (LGA 3647) , C621, 8DIMM, 3PCIe, 14SATA+2M.2, 4*i210AT+1Mgt LAN, IPMI, ATX-like (12"x10.5")

3rd Gen. Intel® Xeon® Scalable Processors Intel® Xeon® W-3300 Processor Family 8-Channel RDIMM/LRDIMM DDR4 per processor, 8 x DIMMs Supports Intel® Optane™ Persistent Memory 200 series Intel® C621A Express Chipset Dual 1Gb/s LAN ports (Intel® I210-AT) 1 x Dedicated management port 3 x SlimSAS (for 12 x SATA 6Gb/s) ports Ultra-Fast M.2 and with PCIe Gen3 x4 interface Up to 7 PCIe Gen4 expansion slots

Intel® Xeon® E-21XXX (95W), C242, 4DIMM, 4 Intel i210AT+1Mgt LAN, 6 SATA(4 by 1 miniSAS HD con.), 2 M.2, 1 PCIe x16+ 1 PCIe x8+1 PCI, 2 U3.1, ATX