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ASUS ROG STRIX X870-A motherboard with AMD Ryzen 9 9950X CPU in ATX form factor, black finish with silver heatsinks

ASUS

ASUS ROG STRIX X870-A GAMING WIFI S + R9 9950X AMD motherboard CPU combo

SKU CH-ZTJD-05CWC

Pairs an AMD X870 motherboard with a 16-core, 32-thread Ryzen 9 9950X CPU, offering 16+2+2 90A power stages, four M.2 slots with PCIe 5.0 and 4.0 support, DDR5-5600 AEMP.

  • CPU Socket TypeAM5
  • ChipsetAMD X870

model ROG STRIX X870-A GAMING WIFI S

+CPU +R9 9950X

Struck-through versions exist but are not stocked here.

  • Ready for advanced AI workloads with X870 chipset and DDR5 5600 support
  • 16 cores and 32 threads on Zen 5 architecture reach 5.7 GHz max boost
  • 16+2+2 power stages rated 90 A per stage 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 improve performance

AMD AM5 platform combo

This bundle pairs an ASUS ROG STRIX X870-A GAMING WIFI S motherboard with an AMD Ryzen 9 9950X processor. The CPU delivers 16 cores and 32 threads built on the Zen 5 architecture. Together they target enthusiasts building advanced AI workstations or high-end gaming rigs on the AM5 socket. The platform supports Ryzen 7000, 8000 and 9000 series chips for future upgrade flexibility.

Thermals and power delivery

The motherboard uses a 16+2+2 power stage design rated at 90A per stage with dual ProCool II connectors, alloy chokes and durable capacitors. AI Cooling II manages fan curves automatically while AI Overclocking tunes voltages for the 5.7 GHz max boost clock. All four M.2 slots carry substantial heatsinks to keep PCIe 5.0 and 4.0 drives cool during sustained workloads.

Build and connectivity

Four M.2 slots, two at PCIe 5.0 and two at PCIe 4.0, provide high-speed storage expansion with dedicated cooling. WiFi 7 and USB4 deliver modern wireless and wired bandwidth for peripherals and external drives. DDR5 AEMP support simplifies memory tuning up to 5600 speeds. The ATX board fits standard mounting points and includes the robust power connectors needed for multi-core operation.

Highlights

  • Ready for advanced AI workloads with X870 chipset and DDR5 5600 support
  • 16 cores and 32 threads on Zen 5 architecture reach 5.7 GHz max boost
  • 16+2+2 power stages rated 90 A per stage 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 improve performance

Specifications

BrandASUS
SeriesROG STRIX
ModelROG STRIX X870-A GAMING WIFI S +R9 9950X
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

How do I install the Ryzen 9 9950X onto the AM5 socket and which step do people often get wrong?

Align the triangle on the CPU with the socket marker, lower it gently without forcing, then close the retention arm; the common mistake is applying thermal paste before confirming the processor sits flat in the socket.

What maintenance or replacement will the motherboard VRM area need later?

The 16+2+2 power stages rated for 90A each use alloy chokes and durable capacitors; under normal loads they require only occasional dust removal, and no scheduled component replacement is expected.

What limit appears first when the 16-core CPU runs sustained all-core workloads?

With a 5.7 GHz max boost and unlocked multiplier, the thermal ceiling of the included cooler — or your chosen cooling solution — typically limits performance before the 90A power stages or DDR5-5600 memory bandwidth do.

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