We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Extended ATX server motherboard, green PCB, dual LGA 4189 sockets, sixteen DDR4 slots, five full-length PCIe x16 slots

Supermicro

Supermicro MBD-X12DAI-N6-O server motherboard LGA 4189 16 DDR4 3200 slots 6TB max

SKU CH-WS49-93XKK MPN MBD-X12DAI-N6-O

Extended ATX dual-socket board with 16 DDR4 3200 slots, 10 SATA 6.0Gb/s ports, five PCIe 4.0 x16 slots and dual 1GbE LAN

  • CPU Socket TypeLGA 4189
  • CPU TypeSupports 3rd Gen Intel Xeon Scalable processors
  • North BridgeIntel C621A
  • Number of DDR4 Slots16 x 288-pin
  • DDR4 StandardDDR4 3200
  • Maximum Memory Supported6TB
  • Supports 3rd Gen Intel Xeon Scalable processors up to 270W TDP
  • 16 DDR4 3200 slots deliver up to 6TB ECC memory capacity
  • 5 PCIe 4.0 x16 plus 1 PCIe 4.0 x8 expansion slots
  • 10 SATA 6.0Gb/s ports with RAID 0/1/5/10 and 2 M.2 PCIe 3.0 x4
  • Dual Intel I210 1GbE LAN and Aspeed AST2600 graphics onboard

Dual-socket LGA 4189 server board

The Supermicro MBD-X12DAI-N6-O is an Extended ATX motherboard built for dual 3rd Gen Intel Xeon Scalable processors up to 270 W TDP. Sixteen 288-pin DDR4 3200 slots support up to 6 TB of ECC memory including 3DS RDIMM, LRDIMM and Optane persistent modules. Two Gigabit Intel I210 LAN ports and an Aspeed AST2600 video chipset handle out-of-band management.

Build integration

The board measures 12 by 13 inches and needs an Extended ATX chassis with matching standoffs and a power supply that delivers dual CPU 8-pin connectors. Five PCIe 4.0 x16 slots and one x8 slot provide room for multiple GPUs, accelerators or networking cards. Ten SATA 6.0 Gb/s ports with RAID 0, 1, 5, 10 and two M.2 PCIe 3.0 x4 slots (2280/22110 M-Key) cover high-density storage without extra HBAs.

Bundled I/O impact

Rear-panel USB includes four USB 3.2 Gen 1 and two USB 3.2 Gen 2 ports for fast peripheral attach. Two additional USB 3.2 Gen 1 headers sit onboard for front-panel or internal devices. Dual 1 GbE links give basic redundancy for management traffic. The Aspeed AST2600 provides KVM-over-IP and virtual media without a discrete graphics card.

Highlights

  • Supports 3rd Gen Intel Xeon Scalable processors up to 270W TDP
  • 16 DDR4 3200 slots deliver up to 6TB ECC memory capacity
  • 5 PCIe 4.0 x16 plus 1 PCIe 4.0 x8 expansion slots
  • 10 SATA 6.0Gb/s ports with RAID 0/1/5/10 and 2 M.2 PCIe 3.0 x4
  • Dual Intel I210 1GbE LAN and Aspeed AST2600 graphics onboard

Specifications

BrandSUPERMICRO
ModelMBD-X12DAI-N6-O
CPU Socket TypeLGA 4189
CPU TypeSupports 3rd Gen Intel Xeon Scalable processors
North BridgeIntel C621A
Number of DDR4 Slots16 x 288-pin
DDR4 StandardDDR4 3200
Maximum Memory Supported6TB
ECC SupportedYes
PCI Express 4.0 x165
PCI Express x81 x PCI Express 4.0 x8
SATA10 x SATA 6.0Gb/s
SATA RAID0/1/5/10
M.2M.2 Interface: 2 PCI-E 3.0 x4, RAID 0 & 1
Form Factor: 2280/22110
Key: M-Key
Onboard Video ChipsetAspeed AST2600
LAN ChipsetIntel I210
LAN Speed10/100/1000Mbps
Second LAN ChipsetIntel I210
Second LAN Speed10/100/1000Mbps
Max LAN Speed2 x 1Gbps
USB 3.04 x USB 3.2 Gen1
USB 3.12 x USB 3.2 Gen2
Onboard USB2 x USB 3.2 Gen 1 (via headers)
Form FactorExtended ATX
Dimensions (W x L)12" x 13"
Shipping weight2.72 kg
Package size406 × 381 × 152 mm

Questions about this item

How many 270W TDP processors can this board support simultaneously?

The board has dual LGA 4189 sockets, each rated for CPUs up to 270W TDP.

What is the maximum LAN throughput available from the two onboard Intel I210 controllers?

Each Intel I210 provides 1Gbps, giving a combined 2 x 1Gbps maximum.

How many DDR4 3200 DIMM slots must be populated to reach the 6TB maximum memory capacity?

All 16 DDR4 3200 slots must be filled with supported 3DS ECC RDIMM or LRDIMM modules to reach 6TB.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.