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ATX (12" x 9.6") Supports 3rd Gen Intel® Xeon® Scalable Processors 8 DIMM slots (1DPC), supports DDR4 RDIMM, LRDIMM, RDIMM/LRDIMM-3DS, and Intel® Optane™ Persistent Memory 4 PCIe4.0 x16, 3 PCIe4.0 x8 Supports 1 M.2 (PCIe3.0 x4), 1 M.2 (PCIe3.0 x1 or SATA 6Gb/s) 13 SATA 6Gb/s (including 1 port from M.2) 2 RJ45 (1GbE) by Intel® i210 Remote management (IPMI)

CEB (12'' x 10.5'') Supports 4th Gen Intel® Xeon® Scalable Processors 8 DIMM slots (1DPC), supports DDR5 RDIMM/ RDIMM-3DS 1 PCIe5.0 / CXL1.1 x16 1 PCIe4.0 x16 4 MCIO (PCIe5.0 x8) 1 OCuLink (PCIe3.0 x4 or SATA 6Gb/s) Supports 2 M.2 (PCIe3.0 x4 or SATA 6Gb/s) Up to 8 SATA 6Gb/s 1 OCP NIC 3.0 (PCIe5.0 x16) 2 RJ45 (10GbE) by Intel® X550-AT2 Remote management (IPMI)

Micro-ATX (9.6" x 9.6") Supports 12th & 13th Gen Intel® Core™, Pentium® and Celeron® series processors 4 DIMM slots (2DPC), supports DDR5 non-ECC UDIMM 1 PCIe4.0 x16*, 1 PCIe4.0 x8*, 1 PCIe3.0 x1 3 OCuLink (PCIe4.0 x4), 1 OCuLink (PCIe4.0 x4 or 4 SATA 6Gb/s) Supports 1 M.2 (PCIe3.0 x4) 2 RJ45 (10GbE) by Intel® X710 2 RJ45 (1GbE) by Intel® i210 Up to 8 SATA 6Gb/s 1 VGA, 1 HDMI, 1 DisplayPort Remote Management (IPMI)

CEB (12" x 11") Single Socket SP5 (LGA 6096), supports AMD EPYC™ 9004 (with AMD 3D V-Cache™ Technology) and 97x4 series processors 8 DIMM slots (1DPC), supports DDR5 RDIMM, RDIMM-3DS 1 PCIe5.0 / CXL1.1 x16, 1 PCIe4.0 x16 1 MCIO (PCIe5.0 / CXL1.1 x8 or 8 SATA 6Gb/s), 2 MCIO (PCIe5.0 x8 or 8 SATA 6Gb/s) 4 MCIO (PCIe5.0 x8) Supports 2 M.2 (PCIe5.0 / CXL1.1 x4 or SATA 6Gb/s) Up to 18 SATA 6Gb/s 2 RJ45 (10GbE) by Broadcom BCM57416 1 OCP NIC 3.0 (PCIe5.0 x16) Remote Management (IPMI)

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

Micro-ATX (9.6" x 9.6") Supports Intel® Xeon® E-2300 and 10th Gen Intel® Pentium® series processors 4 DIMM slots (2DPC), supports DDR4 ECC/non-ECC UDIMM 1 PCIe4.0 x16, 1 PCIe4.0 x4, 1 PCIe3.0 x1 Supports 1 M.2 (PCIe3.0 x2 or SATA 6Gb/s) 6 SATA 6Gb/s 2 RJ45 (10GbE) by Intel® X710-AT2 VGA, HDMI Remote Management (IPMI)

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)

Intel® Xeon® E-21XXX (95W), C242, 4DIMM, 2 Intel X550-AT2+1Mgt LAN, 6 SATA, 2 M.2, 1 PCIe x16+ 1 PCIe x8, 2 U3.1, micro-ATX

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

Supports 2nd Gen. Intel Xeon Scalable Processors / Intel Xeon Scalable Processors Supports 6 Channel, DDR4 2933/2666/2400/2133 RDIMM/LR DIMM, Intel Optane™ DC Persistent Memory in memory mode (Cascade Lake only), 8 dimm slots IntelC621：12 x SATA3 ( 12 port from 3 mini SAS HD, 1x SATA DOM, 1 SATA 7pin, 1 x M.2 Supports dual 10GBase-T by Intel X550-BT2 Supports 2 x PCIe 3.0 x16 4 x USB 3.0 ports (2 ports in Rear side, 2 ports internal header) +1 Type A USB 3.0

ATX (12" x 9.6") Single Socket SP3 (LGA 4094), supports AMD EPYC™ 7003/7002 series processors 8 DIMM slots (1DPC), supports DDR4 RDIMM, LRDIMM, RDIMM/LRDIMM-3DS, NVDIMM-N 7 PCIe4.0 x16 2 OCuLink (PCIe4.0 x4) Supports 2 M.2 (PCIe4.0 x4 or SATA 6Gb/s) 10 SATA 6Gb/s Remote Management (IPMI)

Intel 1xSocket P(LGA 3647) , C621, 12DIMM, 4PCIe, 13SATA+1M.2, 2*i210AT+1Mgt LAN, IPMI, ATX(12"x9.6") 165W TDP