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ATX motherboard with silver heatsinks and a Ryzen 9 9900X3D CPU installed

ASUS

ASUS ROG STRIX X870-A GAMING WIFI S AMD motherboard with Ryzen 9 9900X3D

SKU CH-REV2-WHC2H

An AM5 motherboard and Ryzen 9 9900X3D combo with 16+2+2 power stages, DDR5 AEMP, WiFi 7, four M.2 slots including two PCIe 5.0, and AI overclocking tools

  • CPU Socket TypeAM5
  • ChipsetAMD X870

model ROG STRIX X870-A GAMING WIFI S

+CPU +R9 9900X3D

Struck-through versions exist but are not stocked here.

  • Motherboard and CPU combo simplifies high-end build
  • 16+2+2 power stages rated 90A each support multi-core loads
  • AI overclocking, cooling, networking and AEMP automate tuning
  • Four M.2 slots include two PCIe 5.0 and two PCIe 4.0 with heatsinks
  • Ryzen 9 9900X3D delivers 128MB L3 cache for gaming

ASUS ROG STRIX X870-A GAMING WIFI S Combo

This bundle pairs the ROG STRIX X870-A GAMING WIFI S motherboard with the Ryzen 9 9900X3D processor. The board uses the AMD X870 chipset and an AM5 socket. It targets builders who want a ready-to-run platform for advanced AI workloads and high-end gaming. The CPU brings 12 cores based on the Zen 5 architecture with a 120W TDP.

Check AM5 cooler clearance

Verify that your CPU cooler fits the AM5 mounting pattern and clears the board's power delivery heatsinks. The board supports DDR5 with AEMP profiles, so confirm your modules match the desired speed. Ensure your power supply includes the dual ProCool II connectors required by the 16+2+2 phase design. The board offers four M.2 slots, two running at PCIe 5.0 and two at PCIe 4.0.

16+2+2 power stages rated for 90A each

The VRM uses 16+2+2 power stages rated for 90A per stage with alloy chokes and durable capacitors. Dual ProCool II connectors provide solid current delivery for the 12-core CPU. Four M.2 slots include substantial heatsinks covering both PCIe 5.0 and PCIe 4.0 drives. WiFi 7 and USB4 ports handle modern wireless and wired connectivity needs.

Highlights

  • Motherboard and CPU combo simplifies high-end build
  • 16+2+2 power stages rated 90A each support multi-core loads
  • AI overclocking, cooling, networking and AEMP automate tuning
  • Four M.2 slots include two PCIe 5.0 and two PCIe 4.0 with heatsinks
  • Ryzen 9 9900X3D delivers 128MB L3 cache for gaming

Specifications

BrandASUS
SeriesROG STRIX
ModelROG STRIX X870-A GAMING WIFI S +R9 9900X3D
CPU Socket TypeAM5
ChipsetAMD X870

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Does the combo include the CPU cooler, or do I need to buy one separately for the Ryzen 9 9900X3D?

The bundle provides the motherboard and the Ryzen 9 9900X3D processor; a compatible AM5 cooler is not included and must be purchased separately.

Should I choose the two PCIe 5.0 M.2 slots or the two PCIe 4.0 M.2 slots for my fastest drive?

Install the primary OS drive in a PCIe 5.0 slot to use the full 5.0 bandwidth; the 4.0 slots remain available for additional storage.

What does the 120W TDP of the Ryzen 9 9900X3D mean for everyday thermals with the 16+2+2 power stages?

The 16+2+2 phase design rated at 90A per stage delivers stable current to the 120W chip, keeping voltages steady under sustained multi-core loads.

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