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Green rectangular server motherboard with multiple silver slots and black connectors

ASUS

ASUS K14PA-U12 Server Motherboard EPYC 9004 128C DDR5 25GbE 16 NVMe ASMB11-iKVM

SKU CH-B0FD-0QEYP MPN K14PA-U12

Supports 128-core AMD EPYC 9004 CPUs with dual 25 Gbps LAN, 12 DDR5 4800 DIMM slots, 16 NVMe drives via eight MCIO and onboard ASMB11-iKVM out-of-band management

  • Supports 128-core AMD EPYC 9004 processors up to 400 W TDP
  • Dual SFP28 25 Gbps Ethernet ports with teaming support
  • Accommodates two dual-slot GPUs for accelerated workloads
  • 12 DDR5 4800 RDIMM slots deliver up to 3 TB memory
  • Eight MCIO connectors enable up to 16 NVMe drives onboard

Built for 128-core EPYC 9004 processors

This server motherboard supports AMD EPYC 9004-series CPUs up to 400 W TDP and 128 cores. Twelve DDR5 4800 RDIMM slots scale memory to 3 TB for heavy virtualisation and database workloads. Dual 25 Gbps SFP28 Ethernet with teaming handles high-throughput east-west traffic. Integrated ASMB11-iKVM on an ASPEED AST2600 controller provides full out-of-band management.

Thermal headroom and power delivery

The board is validated for 400 W TDP processors and delivers stable power through a 16-phase design. Eight MCIO connectors feed up to 16 NVMe drives without adding PCIe card clutter that blocks airflow. Dual-slot GPU support is limited to two cards, keeping chassis density manageable. No acoustic or fan-curve data is published by the supplier.

Replaces older dual-socket platforms

Consolidate workloads that previously required two sockets into a single 128-core socket with 12-channel memory. The jump is worth it when you need 25 Gbps networking, 16 onboard NVMe lanes and remote KVM without extra cards. Not suited for builds needing more than two dual-slot GPUs or more than 12 DIMM slots.

How it compares

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

Price $613.99
Pricier than about 89% of the 776 comparable items (median $254.49).

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Specifications

Size & build
Shipping weight2.22 kg
Package size432 × 394 × 76 mm

Questions about this item

How is the ASMB11-iKVM with ASPEED AST2600 configured for out-of-band management?

Connect the dedicated management LAN port, access the web interface via browser, then set network credentials and enable KVM-over-IP for remote console control.

What maintenance does the dual 25 Gbps SFP28 Ethernet require over time?

Dust the SFP28 cages and verify transceiver seating during scheduled downtime; replace optics only if link errors or throughput drops appear.

Which thermal limit appears first when the board runs a 400 W TDP processor continuously?

The VRM temperature threshold triggers throttling before the CPU hits its own junction limit, so sustained 400 W operation depends on chassis airflow meeting the board's cooling design.

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