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ASUS PRIME B650M-A WIFI II-CSM board with Ryzen 9 9950X CPU installed, AM5 socket, DDR5 slots, VRM and PCH heatsinks

ASUS

ASUS PRIME B650M-A WIFI II-CSM AMD motherboard & Ryzen 9 9950X CPU combo

SKU CH-NKRA-QC35Y

A Mini-ITX AM5 motherboard paired with a 16-core Ryzen 9 9950X CPU offers Wi-Fi 6, 2.5 Gbps LAN, PCIe 5.0 M.2 and DDR5-5600 support for high-performance builds

  • CPU Socket TypeAM5

model PRIME B650M-A WIFI II-CSM

+CPU +Ryzen 9 9950X

  • 16 cores and 32 threads handle heavy workloads
  • Max boost up to 5.7 GHz for fast single-thread speed
  • Wi-Fi 6 and 2.5 Gb Ethernet give quick network links
  • M.2 slot with PCIe 5.0 enables rapid storage
  • DDR5-5600 support with OptiMem II improves memory stability

Combo for AM5 workstations

The bundle pairs an ASUS PRIME B650M-A WIFI II-CSM motherboard with an AMD Ryzen 9 9950X processor. The CPU delivers 16 cores and 32 threads built on the Zen 5 architecture with a 5.7 GHz maximum boost clock. The board uses the AMD B650 chipset and AM5 socket to support Ryzen 7000 series processors. It targets builders who need high multi-threaded performance and modern connectivity in a compact form factor.

Straightforward AM5 assembly

The motherboard follows the standard Mini-ITX layout so it fits into most small-form-factor cases. Install the CPU into the AM5 socket, apply thermal paste, and mount your chosen cooler — note that no cooler is included with the 9950X. Insert DDR5 modules into the two slots; the OptiMem II routing helps maintain signal integrity at higher speeds. Connect the 24-pin and 8-pin power cables, then attach storage and front-panel headers. The main risk is forgetting the CPU power connector or seating memory incompletely, which prevents POST.

Headroom for heavy workloads

The 9950X provides 64 MB of L3 cache and 16 MB of L2 cache to feed 32 threads, while DDR5-5600 support gives ample memory bandwidth for rendering and compilation. A PCIe 5.0 M.2 slot allows the fastest available SSDs, and the 2.5 Gbps wired LAN plus Wi-Fi 6 handle heavy network traffic. The VRM and PCH heatsinks with Fan Xpert 2+ keep thermals in check during sustained loads. The platform runs out of steam only when a workload exceeds the 16-core ceiling or demands more than two DIMM slots.

Highlights

  • 16 cores and 32 threads handle heavy workloads
  • Max boost up to 5.7 GHz for fast single-thread speed
  • Wi-Fi 6 and 2.5 Gb Ethernet give quick network links
  • M.2 slot with PCIe 5.0 enables rapid storage
  • DDR5-5600 support with OptiMem II improves memory stability

Specifications

BrandASUS
ModelPRIME B650M-A WIFI II-CSM+R9 9950X
CPU Socket TypeAM5

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 can I confirm the Ryzen 9 9950X is running at its 5.7 GHz max boost after installing it on the PRIME B650M-A WIFI II-CSM?

Enter the BIOS or use monitoring software to verify the CPU reaches 5.7 GHz under load; the board's OptiMem II routing and VRM heatsink help sustain boost clocks on the 16-core, 32-thread Zen 5 processor.

What components are included in this combo and which essential parts must I purchase separately?

The box contains the PRIME B650M-A WIFI II-CSM motherboard and the Ryzen 9 9950X CPU; you must buy DDR5 memory, a CPU cooler, storage drives, a power supply, a case and an operating system separately.

Should I choose the Wi-Fi 6 version of this motherboard or a variant with 2.5 Gb wired networking for my build?

This specific combo includes both Wi-Fi 6 and a Realtek 2.5 Gb wired network controller on the same PRIME B650M-A WIFI II-CSM board, so no choice between versions is needed.

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