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Extended ATX server motherboard dual SP3 sockets sixteen DIMM slots three PCIe 4.0 x16 slots dual 10G LAN ports

Supermicro

Supermicro MBD-H12DSI-NT6-O server motherboard dual SP3 16 DIMM 3200MHz 3 PCIe 4.0 x16 2 10G LAN

SKU CH-S3KN-PF8H3 MPN MBD-H12DSI-NT6-O

Extended-ATX dual-socket SP3 board supporting 16 DDR4 DIMMs at 3200 MHz, three PCIe 4.0 x16 slots, ten SATA3 ports and dual 10GBase-T LAN

  • CPU socketSocket SP3
  • Dual AMD EPYC 7002 and 7003 Series processor support for high-density compute
  • 16 DDR4 DIMM slots deliver up to 4 TB registered ECC memory at 3200 MHz
  • Three PCIe 4.0 x16 expansion slots provide maximum I/O bandwidth for accelerators
  • Dual 10GBase-T LAN ports enable fast storage and cluster networking
  • M.2 M-key slot with PCIe 4.0 x4 supports 2280 and 22110 NVMe drives

Dual EPYC server board for dense compute

This extended ATX motherboard accepts two AMD EPYC 7002 or 7003 series processors in Socket SP3. It targets high-density servers that need many cores and large memory capacity in a single node. Builders who need a single-socket platform or consumer CPU support should look elsewhere.

DDR4 3200 and PCIe 4.0 lanes set the ceiling

Sixteen DIMM slots support up to 4 TB of registered ECC DDR4 at 3200 MHz. Three PCIe 4.0 x16 and three PCIe 4.0 x8 slots provide expansion bandwidth, while one M.2 slot (2280 or 22110, M-key) carries a PCIe 4.0 x4 link. Storage connectivity includes ten SATA3 ports, two SATADOM connectors and four NVMe interfaces. Buyers who require more than 4 TB of memory or PCIe 5.0 speeds cannot use this board.

Dual 10GBase-T and IPMI simplify rack deployment

Two onboard 10GBase-T LAN ports handle high-throughput data traffic, and a dedicated IPMI LAN port gives remote management its own path. The 24-pin main power connector feeds the board. No integrated Wi-Fi or consumer audio is present, so installations needing wireless or desktop multimedia features will need add-in cards.

How it compares

Measured against everything we stock in Server & Workstation Boards, at today’s prices. Recalculated every night.

Price $692.99
Pricier than about 90% of the 776 comparable items (median $254.49).

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Specifications

Processor
CPU socketSocket SP3
Size & build
Shipping weight2.27 kg
Package size457 × 381 × 89 mm

Questions about this item

Should I choose the 16 DIMM configuration for 4 TB DDR4 3200 MHz or a smaller memory setup?

The board supports up to 4 TB of registered ECC DDR4 3200 MHz across 16 DIMM slots; populate only the slots needed for your workload to leave room for future expansion.

What does the 3200 MHz memory speed deliver in a dual EPYC 7003 Series system?

With compatible EPYC 7003 Series processors and BIOS 2.3 or newer, the 3200 MHz DDR4 runs at its rated frequency, providing maximum memory bandwidth for compute-intensive tasks.

How many PCIe 4.0 x16 slots are usable for GPUs or accelerators?

Three full-length PCIe 4.0 x16 slots are available for GPUs, FPGAs or other add-in cards, while three additional x8 slots and an M.2 M-key slot handle storage and networking.

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