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ASUS ROG STRIX X870-A motherboard with Ryzen 9 9950X3D CPU in ATX form factor with silver-white finish

ASUS

ASUS ROG STRIX X870-A GAMING WIFI S + Ryzen 9 9950X3D AMD motherboard & CPU combo

SKU CH-TJH5-6FC7J

A motherboard and CPU pairing built on the AMD X870 chipset with a 16+2+2 power design rated at 90A per stage, PCIe 5.0 and 4.0 M.2 slots, WiFi 7 connectivity.

  • CPU Socket TypeAM5
  • ChipsetAMD X870

model ROG STRIX X870-A GAMING WIFI S

+CPU +R9 9950X3D

Struck-through versions exist but are not stocked here.

  • Ready for demanding AI workloads with high-performance power and connectivity
  • 16+2+2 power stages rated at 90A each with dual ProCool II connectors
  • Two PCIe 5.0 and two PCIe 4.0 M.2 slots with substantial cooling
  • AI Overclocking, AI Cooling II, AI Networking and AEMP simplify setup and boost performance
  • Ryzen 9 9950X3D with 128MB L3 cache and Radeon graphics at 170W

AM5 Platform Ready

This bundle pairs an ASUS ROG STRIX X870-A GAMING WIFI S motherboard with the AMD Ryzen 9 9950X3D processor. The board uses the AMD X870 chipset and AM5 socket, supporting Ryzen 7000, 8000 and 9000 series CPUs. It delivers a 16+2+2 power design rated at 90A per stage with dual ProCool II connectors. Built-in WiFi 7 and DDR5 AEMP support complete the platform foundation.

Enthusiast and AI Workstation Fit

The combination suits builders who want maximum multi-core performance for advanced AI computing, heavy content creation or high-refresh gaming. The 128MB L3 cache and 170W TDP processor benefits from ROG overclocking tools including Dynamic OC Switcher, Core Flex and PBO Enhancement. Users needing a smaller form factor or a lower-power CPU should consider alternative AM5 boards and processors.

Four M.2 Slots With Dual PCIe 5.0

Storage connectivity is defined by four onboard M.2 slots: two wired for PCIe 5.0 and two for PCIe 4.0, each equipped with substantial heatsinks. This layout allows multiple high-speed drives without adding expansion cards. The CPU also includes AMD Radeon graphics for display output without a discrete GPU.

Highlights

  • Ready for demanding AI workloads with high-performance power and connectivity
  • 16+2+2 power stages rated at 90A each with dual ProCool II connectors
  • Two PCIe 5.0 and two PCIe 4.0 M.2 slots with substantial cooling
  • AI Overclocking, AI Cooling II, AI Networking and AEMP simplify setup and boost performance
  • Ryzen 9 9950X3D with 128MB L3 cache and Radeon graphics at 170W

Specifications

BrandASUS
SeriesROG STRIX
ModelROG STRIX X870-A GAMING WIFI S +R9 9950X3D
CPU Socket TypeAM5
ChipsetAMD X870

Other versions of this model

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

Questions about this item

Will the dual ProCool II power connectors on the ROG STRIX X870-A GAMING WIFI S fit my existing power supply cables?

The board uses dual ProCool II connectors for the 16+2+2 power solution rated at 90A per stage. Most modern ATX power supplies include the required 8-pin EPS cables; check your PSU for two 8-pin CPU connectors.

What is the correct order to install the Ryzen 9 9950X3D into the AM5 socket without bending pins?

Lift the retention arm, align the triangle marker on the CPU with the socket corner, place the chip gently without force, lower the arm and secure the lever. The 170W processor then needs firm cooler contact.

How often should I replace the thermal interface on the 128MB L3 cache die of the Ryzen 9 9950X3D?

Reapply quality thermal paste every two to three years or whenever the cooler is removed. The 3D V-Cache die runs hot under sustained loads, so fresh paste keeps temperatures stable.

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