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Green Micro ATX server board with eight DDR4 slots, dual 10GbE and four GbE ports, two full-length PCIe 4.0 x16 slots, M.2 slot

Supermicro

Supermicro MBD-X12SPM-LN6TF-O server motherboard

SKU CH-Y0N2-CRBBS MPN MBD-X12SPM-LN6TF-O

Micro-ATX server board for 3rd Gen Intel Xeon Scalable CPUs with eight DDR4-3200 slots, dual 10GbE, quad 1GbE, ten SATA ports and PCIe 4.0 expansion

  • CPU Socket TypeSocket P+
  • CPU TypeSupports 3rd Gen Intel Xeon Scalable processors
  • North BridgeIntel C621A
  • Number of DDR4 Slots8 x 288-pin
  • DDR4 StandardDDR4 3200
  • Maximum Memory SupportedUp to 2TB 3DS ECC RDIMM, DDR4-3200MHz; Up to 2TB 3DS ECC LRD
  • Supports 3rd Gen Intel Xeon Scalable processors up to 270W TDP
  • Eight DDR4-3200 slots deliver up to 2TB ECC RDIMM or LRDIMM capacity
  • Dual 10Gbps LAN plus four 1Gbps ports for high-throughput networking
  • Two PCIe 4.0 x16 and one x8 slots enable GPU or accelerator expansion
  • Ten SATA 6.0Gb/s ports with RAID 0/1/5/10 plus M.2 SATA/PCIe 3.0 x4

Single-socket Xeon server board

The Supermicro MBD-X12SPM-LN6TF-O is a Micro ATX motherboard built for a single 3rd Gen Intel Xeon Scalable processor in the Socket P+ (LGA-4189) package with up to 270 W TDP. It targets integrators who need dense compute in a compact chassis while retaining enterprise-grade RAS features.

Verify chassis power and cooler clearance

Confirm the chassis can deliver sufficient 12 V current for a 270 W CPU and that the cooler mounting pattern matches the LGA-4189 socket. Ensure the power supply provides the required EPS connectors and that the Micro ATX form factor fits the intended rack or tower enclosure.

Dual 10 GbE and Aspeed AST2600 remote management

Two Intel X550 ports provide 10 Gbps Ethernet alongside four Intel I350 gigabit ports for management traffic. The Aspeed AST2600 BMC enables full KVM-over-IP and virtual media without a dedicated graphics card.

Highlights

  • Supports 3rd Gen Intel Xeon Scalable processors up to 270W TDP
  • Eight DDR4-3200 slots deliver up to 2TB ECC RDIMM or LRDIMM capacity
  • Dual 10Gbps LAN plus four 1Gbps ports for high-throughput networking
  • Two PCIe 4.0 x16 and one x8 slots enable GPU or accelerator expansion
  • Ten SATA 6.0Gb/s ports with RAID 0/1/5/10 plus M.2 SATA/PCIe 3.0 x4

Specifications

BrandSUPERMICRO
ModelMBD-X12SPM-LN6TF
CPU Socket TypeSocket P+
CPU TypeSupports 3rd Gen Intel Xeon Scalable processors
North BridgeIntel C621A
Number of DDR4 Slots8 x 288-pin
DDR4 StandardDDR4 3200
Maximum Memory SupportedUp to 2TB 3DS ECC RDIMM, DDR4-3200MHz; Up to 2TB 3DS ECC LRDIMM, DDR4-3200MHz
Up to 2TB Intel Optane Persistent Memory 200 Series, in 8 DIMM slots
ECC SupportedYes
PCI Express 4.0 x162
PCI Express x81 x PCI Express 4.0 x8
SATA10 x SATA 6.0Gb/s
SATA RAID0/1/5/10
M.2M.2 Interface: 1 SATA/PCI-E 3.0 x4
Form Factor: 2280, 22110
Key: M-Key
Onboard Video ChipsetAspeed AST2600
LAN ChipsetIntel X550
LAN Speed10Gbps
Second LAN ChipsetIntel I350-AM4
Second LAN Speed10/100/1000Mbps
Max LAN Speed10Gbps
Back I/O Ports4 x RJ45 Gigabit Ethernet LAN ports
2 x RJ45 10 Gigabit Ethernet LAN ports
6 x USB 2.0 ports (2 rear + 4 via headers)
5 x USB 3.2 Gen1 ports (2 rear + 2 via headers + 1 Type A)
1 x VGA port
1 x COM Port (1 header)
TPM Header
Form FactorMicro ATX
Dimensions (W x L)9.6" x 9.6"
Shipping weight1.25 kg
Package size284 × 273 × 51 mm

Questions about this item

What comes in the box and which components such as the CPU, DDR4 memory, or M.2 drive must be purchased separately?

The board is sold as a bare motherboard. You must supply a 3rd Gen Intel Xeon Scalable processor for the Socket P+ (LGA-4189), DDR4-3200 ECC RDIMM or LRDIMM modules up to 2 TB total, and any M.2 2280 or 22110 SATA/PCIe 3.0 x4 drive you need.

Which memory configuration should I choose: 3DS ECC RDIMM, 3DS ECC LRDIMM, or Intel Optane Persistent Memory 200 Series?

All three types fit the eight 288-pin slots and run at DDR4-3200. RDIMMs suit general server workloads, LRDIMMs allow higher per-module density, and Optane PMem 200 Series adds persistent memory capacity — pick based on your application’s capacity and latency requirements.

What does the dual 10 GbE Intel X550 plus quad 1 GbE Intel I350-AM4 LAN layout mean for actual network throughput?

Two RJ45 ports deliver up to 10 Gbps each via the X550 controller, while four additional RJ45 ports provide 1 Gbps links through the I350-AM4, giving six wired Ethernet connections for separate storage, management, and data networks.

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