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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 Socket TypeLGA 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.

Highlights

  • 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

Specifications

CPU Socket TypeLGA 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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