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Black ATX motherboard with silver heatsinks and installed CPU, boxed combo photo

ASUS

ASUS ROG STRIX X870-A GAMING WIFI S AMD motherboard & Ryzen 9 9900X CPU Combo USB4

SKU CH-0FGQ-8W4FW

An AMD AM5 motherboard and 12-core Ryzen 9 9900X CPU bundle with 16+2+2 power stages, DDR5 AEMP, WiFi 7, two PCIe 5.0 M.2 slots and USB4

  • CPU Socket TypeAM5
  • ChipsetAMD X870

model ROG STRIX X870-A GAMING WIFI S

+CPU +R9 9900X

Struck-through versions exist but are not stocked here.

  • Pre-configured motherboard and CPU combo saves build time
  • 12-core 24-thread Ryzen 9 9900X reaches 5.6 GHz max boost
  • 16+2+2 power stages rated at 90 A handle multi-core loads
  • Two PCIe 5.0 and two PCIe 4.0 M.2 slots with heatsinks
  • WiFi 7 and USB4 provide high-speed wireless and wired connectivity

ROG STRIX X870-A with Ryzen 9 9900X

The ROG STRIX X870-A GAMING WIFI S motherboard paired with the Ryzen 9 9900X delivers a 12-core, 24-thread platform for high-end gaming and AI workloads. The AM5 socket supports Ryzen 7000, 8000 and 9000 series processors. AI Overclocking, AI Cooling II and AEMP simplify tuning while WiFi 7 provides fast wireless connectivity.

Upgrade from older AM4 or entry AM5 builds

Moving to this combo replaces an older platform with DDR5 memory support, PCIe 5.0 M.2 slots and a 16+2+2 power design rated at 90A per stage. The jump is worth it when you need the 9900X's 5.6 GHz max boost, 64 MB L3 cache and unlocked overclocking headroom for sustained multi-core performance.

Four M.2 slots and DDR5-5600 capacity

Two PCIe 5.0 and two PCIe 4.0 M.2 slots, all heatsinked, handle multiple high-speed drives without thermal throttling. DDR5-5600 support gives ample memory bandwidth for gaming and AI tasks. The platform runs out when workloads exceed the 12-core CPU or the board's four M.2 limit.

Highlights

  • Pre-configured motherboard and CPU combo saves build time
  • 12-core 24-thread Ryzen 9 9900X reaches 5.6 GHz max boost
  • 16+2+2 power stages rated at 90 A handle multi-core loads
  • Two PCIe 5.0 and two PCIe 4.0 M.2 slots with heatsinks
  • WiFi 7 and USB4 provide high-speed wireless and wired connectivity

Specifications

BrandASUS
SeriesROG STRIX
ModelROG STRIX X870-A GAMING WIFI S +R9 9900X
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

Will the included Ryzen 9 9900X fit the motherboard socket without a BIOS update?

The motherboard uses the AM5 socket, which is designed for Ryzen 7000, 8000 and 9000 series processors, so the 12-core 9900X is supported natively.

Does the combo come with a CPU cooler, or do I need to buy one separately?

The processor is sold without a cooler, so you will need to purchase a compatible AM5 cooler before you can run the system.

How many high-speed M.2 drives can I install, and what speeds do they support?

The board provides four M.2 slots — two wired for PCIe 5.0 and two for PCIe 4.0 — each with substantial heatsinks for sustained performance.

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