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ASUS ROG STRIX B850-A motherboard with Ryzen 9 9950X CPU installed, black PCB silver heatsinks ATX form factor

ASUS

ASUS ROG STRIX B850-A GAMING WIFI S AMD motherboard & Ryzen 9 9950X CPU combo

SKU CH-N6NR-243ET

A B850 ATX board with 16+2 70 A power stages, PCIe 5.0 x16 slot, dual M.2, WiFi 6E and 2.5G LAN paired with a 16-core 32-thread Ryzen 9 9950X hitting 5.7 GHz boost on DDR5-5600

  • CPU Socket TypeAM5
  • ChipsetAMD B850

Motherboard ROG STRIX B850-A GAMING WIFI S

Struck-through versions exist but are not stocked here.

CPU + Ryzen 9 9950X

  • 16-core 32-thread Zen 5 CPU for heavy multi-threaded workloads
  • 16+2 phase 70A power delivery enables stable overclocking headroom
  • PCIe 5.0 x16 slot plus dual M.2 slots for fastest GPU and storage
  • WiFi 6E and 2.5G LAN with LANGuard for low-latency networking
  • Rear USB 3.2 Gen 2x2 Type-C at 20Gbps plus USB4 header for high-speed peripherals

AM5 Platform with 16-Core CPU

This combo pairs the ASUS ROG STRIX B850-A GAMING WIFI S motherboard with the AMD Ryzen 9 9950X processor. The board uses the B850 chipset and AM5 socket, supporting Ryzen 7000, 8000 and 9000 series CPUs. The 9950X delivers 16 cores and 32 threads based on the Zen 5 architecture with a 5.7 GHz max boost clock. It is suited for enthusiasts building a high-performance desktop for content creation and gaming.

Enthusiasts Seeking Unlocked 16-Core Power

The combination suits users who need maximum multi-threaded performance and want to tune memory and CPU frequencies. The motherboard provides a 16+2 power stage design rated at 70 A per stage, dual M.2 slots (PCIe 5.0 x4 and PCIe 4.0 x4), WiFi 6E, 2.5G LAN and rear USB 3.2 Gen 2x2 Type-C at 20 Gbps. Builders who require a cooler in the box or who prefer a lower-core-count processor should consider other options.

16-Core 32-Thread Zen 5 Processor

The deciding specification is the Ryzen 9 9950X with 16 cores, 32 threads, 64 MB L3 cache and 16 MB L2 cache. It supports DDR5-5600 memory and is unlocked for overclocking on the AM5 platform. No cooler is included, so a separate purchase is required. This CPU defines the performance ceiling of the combo.

Highlights

  • 16-core 32-thread Zen 5 CPU for heavy multi-threaded workloads
  • 16+2 phase 70A power delivery enables stable overclocking headroom
  • PCIe 5.0 x16 slot plus dual M.2 slots for fastest GPU and storage
  • WiFi 6E and 2.5G LAN with LANGuard for low-latency networking
  • Rear USB 3.2 Gen 2x2 Type-C at 20Gbps plus USB4 header for high-speed peripherals

Specifications

BrandASUS
ModelROG STRIX B850-A GAMING WIFI S Motherboard + Ryzen 9 9950X
CPU Socket TypeAM5
ChipsetAMD B850

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 this motherboard support DDR5 memory and what speed does the CPU officially support?

The board is DDR5-only and the Ryzen 9 9950X officially supports DDR5-5600.

Will the included CPU fit the socket on this board without a BIOS update?

The Ryzen 9 9950X uses the AM5 socket which matches the B850 board; the platform supports Ryzen 7000/8000/9000 series out of the box.

Is a CPU cooler included in this combo or do I need to buy one separately?

The Ryzen 9 9950X does not come with a cooler, so you must purchase a compatible AM5 cooler separately.

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