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ATX workstation motherboard, dark PCB with silver heatsinks and black slots

ASUS

ASUS PRO WS C422-ACE Intel ATX LGA 2066 motherboard

SKU CH-1TQV-QH1M2

Workstation board for Intel Xeon W CPUs with three PCIe 3.0 x16 slots, 14 power stages, triple M.2 slots with dual heatsinks, dual U.2 ports, dual Intel LAN.

  • CPU socketLGA 2066
  • Ready for the latest Intel Xeon W workstation processors
  • Three PCIe 3.0 x16 slots with 3-way x16/x16/x8 lane arrangement
  • Enhanced power solution with 12+2 IR3555 power stages and 8-layer PCB
  • Triple M.2 slots with two heatsinks plus dual U.2 slots for NVMe storage
  • USB 3.2 Gen 2 up to 10Gbps via Type-A and Type-C ports

Workstation Motherboard for Xeon W CPUs

The ASUS PRO WS C422-ACE is an ATX board built for Intel Xeon W workstation processors in the LGA 2066 socket. It targets professionals who need server-grade reliability and extensive expansion for compute-intensive tasks. The C422 chipset provides a stable platform for 24/7 operation in demanding environments.

Sustained Load Performance

An enhanced power solution uses 12+2 IR3555 power stages alongside ProCool II connectors, alloy chokes and durable capacitors on an 8-layer PCB to maintain stable delivery during long rendering or simulation runs. Three PCIe 3.0 x16 slots operate in an x16/x16/x8 arrangement to keep multiple accelerators fed with bandwidth without throttling.

Thermals, Noise and Power

Triple M.2 slots include two integrated heatsinks to keep NVMe storage temperatures in check during heavy I/O, while dual U.2 ports add further high-speed drive options. Dual Intel LAN and USB 3.2 Gen 2 Type-A and Type-C ports running at up to 10Gbps handle data traffic without adding acoustic load. ASUS Control Center Express enables remote monitoring to keep systems running efficiently.

How it compares

Measured against everything we stock in Motherboards for Intel CPUs, at today’s prices. Recalculated every night.

Price $411.99
Pricier than about 91% of the 2,965 comparable items (median $97.99).

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Specifications

Processor
CPU socketLGA 2066

Questions about this item

How much heat and power does the 12+2 IR3555 power stage design generate under continuous 24/7 workloads?

The 12+2 IR3555 power stages, ProCool II connectors, alloy chokes, and 8-layer PCB are engineered for stable power delivery during sustained operation, with server-grade reliability testing validating 24/7 performance in various environments.

Which processor and memory must I already have to use this LGA 2066 workstation board?

This board requires an Intel Xeon W processor for the LGA 2066 socket and DDR4 ECC memory modules to function.

Will my existing PCIe 3.0 add-in cards and NVMe drives work with the three x16 slots and triple M.2 plus dual U.2 ports?

Yes, the three PCIe 3.0 x16 slots operate at x16/x16/x8 lane arrangement, while triple M.2 slots with two heatsinks and dual U.2 ports provide native NVMe support for current storage devices.

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