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Green rectangular Mini-ITX server board with silver memory slots and black I/O ports

ASUS

ASUS P12R-I server motherboard LGA 1200 16 DDR4 10GbE

SKU CH-R5F3-EA8TF MPN P12R-I

Server motherboard with LGA 1200 socket, sixteen DDR4 slots supporting ECC memory, twelve SATA ports, dual 10GbE LAN and one PCIe 4.0 slot

  • CPU Socket TypeLGA 1200
  • CPU TypeIntel® Xeon® Scalable Processors (up to 3rd Gen)
  • Supported CPU TechnologiesSupports Intel® Xeon® Scalable Processors (up to 3rd Gen)
  • North BridgeIntel C621A
  • Number of DDR4 Slots16
  • DDR4 Standard2933/2666/2400/2133 MHz DDR4
  • Supports Intel Xeon E-2300 processors up to 95 W TDP
  • 16 DDR4 slots accept ECC registered memory at 2933 MHz
  • Dual 10 GbE LAN via Intel X550-T2 controller
  • 12 SATA 6 Gb/s ports plus two M.2 slots for storage density
  • ASMB10-iKVM with ASPEED AST2600 enables remote out-of-band management

Compact Server Platform

The ASUS P12R-I is a rack-optimised Mini-ITX motherboard built for the Intel Xeon E-2300 series in an LGA 1200 socket. It delivers sixteen DDR4 slots supporting ECC registered memory up to 2933 MHz and dual 10GbE ports driven by an Intel X550-T2 controller. The board fits dense remote-office or branch-office deployments where space and I/O throughput matter.

Density and I/O Upgrade

Moving from a standard micro-ATX server board adds twelve SATA 6Gb/s ports and two M.2 slots alongside a single PCIe 4.0 x16 expansion slot. The jump is worth it when a 1U chassis must host many drives and high-speed networking without a separate HBA or NIC. Eight additional PCIe x8 lanes and six x4 lanes give headroom for specialised add-in cards.

Target Builder Profile

This board suits integrators building storage-heavy 1U nodes that need ECC memory capacity and twin 10GbE links out of the box. It is not for buyers who require multiple full-length GPU slots, processors beyond the 95 W TDP envelope, or memory speeds above 2933 MHz. Builders needing more than one PCIe 4.0 x16 slot should look at larger form factors.

Highlights

  • Supports Intel Xeon E-2300 processors up to 95 W TDP
  • 16 DDR4 slots accept ECC registered memory at 2933 MHz
  • Dual 10 GbE LAN via Intel X550-T2 controller
  • 12 SATA 6 Gb/s ports plus two M.2 slots for storage density
  • ASMB10-iKVM with ASPEED AST2600 enables remote out-of-band management

Specifications

BrandASUS
ModelP12R-I
CPU Socket TypeLGA 1200
CPU TypeIntel® Xeon® Scalable Processors (up to 3rd Gen)
Supported CPU TechnologiesSupports Intel® Xeon® Scalable Processors (up to 3rd Gen)
North BridgeIntel C621A
Number of DDR4 Slots16
DDR4 Standard2933/2666/2400/2133 MHz DDR4
Memory Slots16 DIMM Slots
Memory StandardDDR4 2933/2666/2400/2133 MHz ECC Reg./Non-ECC
ECC SupportedYes
RegisteredYes
PCI Express 3.0 x16Yes
PCI Express x161
PCI Express x87
PCI Express x46
SATA12 x SATA 6Gb/s
M.22 x M.2 (PCIe Gen3 x4, SATA)
LAN ChipsetIntel X550-T2
LAN Speed10GbE
Second LAN ChipsetIntel® X550-T2
Second LAN Speed10 Gb/s
Max LAN Speed10 Gbps
Back I/O Ports4 x USB 3.2 Gen 1
1 x VGA Port (VGA from BMC)
2 x GbE LAN + 1 x Mgmt LAN
RJ452
Other Connectors1 x TPM header
1 x PSU Power Connector (24-pin ATX power connector + 8-pin ATX 12V power connector)
4 x USB3.2 Gen1 ports
1 x USB3.2 Gen1 header
2 x Fan Header , 4pin
1 x Chassis Intruder
2 x Front LAN LED
1 x Serial Port Header
1 x M.2 Connector
1 x VGA Header
Shipping weight1.07 kg
Package size343 × 279 × 76 mm

Questions about this item

What chassis depth does the LGA 1200 Mini-ITX form factor require?

The compact Mini-ITX layout fits standard 1U and 2U rackmount chassis designed for server motherboards with rear I/O.

Which power connectors must be seated before the first POST on the P12R-I?

Connect both the 24-pin ATX and the 8-pin ATX 12V headers; the board will not power on if either is missing.

When should the 10GbE RJ45 ports be cleaned or the SFP+ modules reseated?

Inspect the dual Intel X550-T2 ports and any installed SFP+ modules during scheduled dust-outs or if link errors appear in the BMC log.

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