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ATX motherboard in black with silver heatsinks, boxed Ryzen 5 9600X CPU beside it

ASUS

ASUS ROG STRIX B850-A GAMING WIFI S AMD motherboard & Ryzen 5 9600X CPU combo

SKU CH-A6BK-0BMN9

ATX motherboard with 16+2 power stages and WiFi 6E paired with a 6-core Ryzen 5 9600X reaching 5.4 GHz

  • CPU Socket TypeAM5
  • ChipsetAMD B850

Motherboard ROG STRIX B850-A GAMING WIFI S

Struck-through versions exist but are not stocked here.

CPU + Ryzen 5 9600X

  • Stable overclocking headroom from 16+2 power stages rated at 70A
  • Next-gen GPU and storage speed via PCIe 5.0 x16 SafeSlot and dual M.2 slots
  • Cool VRM and SSD temps through stacked-fin heatsinks, M.2 shields and hybrid fan headers
  • Fast wired and wireless networking with WiFi 6E plus 2.5G LAN
  • Smooth 100+ FPS gaming from Ryzen 5 9600X with 6 cores, 12 threads and 5.4 GHz boost

AM5 platform combo

This bundle pairs an ASUS ROG STRIX B850-A GAMING WIFI S motherboard with an AMD Ryzen 5 9600X processor. The board uses the AMD B850 chipset and AM5 socket, supporting Ryzen 7000, 8000 and 9000 series CPUs. It targets builders who want a ready-to-run foundation for high-refresh gaming and multitasking. The processor delivers 6 cores and 12 threads on Zen 5 architecture with a 5.4 GHz maximum boost clock.

Sustained-load behaviour

The motherboard provides 16+2 power stages rated at 70 A with alloy chokes and durable capacitors, giving stable voltage during extended overclocking sessions. VRM heatsinks use stacked fins while M.2 heatshields include thermal pads, and multiple hybrid fan headers support AIO pump control for continuous airflow. The unlocked Ryzen 5 9600X maintains its 38 MB cache and DDR5-5600 memory support under prolonged workloads.

Build and connectivity

A PCIe 5.0 x16 SafeSlot and dual M.2 slots (PCIe 5.0 x4 plus PCIe 4.0 x4) secure high-speed GPUs and storage. Rear I/O includes WiFi 6E, 2.5G LAN with LANGuard, and USB 3.2 Gen 2x2 Type-C at 20 Gbps. A front-panel USB 3.2 Gen 1 Type-C header and USB4 header add internal expandability. The combo earned a CES 2025 Innovation Award Honoree recognition.

Highlights

  • Stable overclocking headroom from 16+2 power stages rated at 70A
  • Next-gen GPU and storage speed via PCIe 5.0 x16 SafeSlot and dual M.2 slots
  • Cool VRM and SSD temps through stacked-fin heatsinks, M.2 shields and hybrid fan headers
  • Fast wired and wireless networking with WiFi 6E plus 2.5G LAN
  • Smooth 100+ FPS gaming from Ryzen 5 9600X with 6 cores, 12 threads and 5.4 GHz boost

Specifications

BrandASUS
ModelROG STRIX B850-A GAMING WIFI S+R5 9600X
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

How loud or hot does the 16+2 70A power stage get when the Ryzen 5 9600X runs all day?

The VRM uses stacked-fin heatsinks and alloy chokes to spread heat from the 16+2 70A stages, while hybrid fan headers including AIO-pump support let you tune airflow for sustained loads.

What memory and cooler must I already own to use this AM5 combo?

You need DDR5 modules — the CPU supports DDR5-5600 — and an AM5-compatible cooler, because the socket mounting pattern differs from AM4.

Will my PCIe 4.0 graphics card and existing M.2 drives work at full speed in the PCIe 5.0 x16 slot and dual M.2 slots?

Yes, the PCIe 5.0 x16 SafeSlot and the two M.2 slots (PCIe 5.0 x4 plus PCIe 4.0 x4) are backward compatible, so older cards and drives run at their rated speeds.

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