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ATX motherboard in white and silver with large VRM heatsinks, M.2 covers and rear I/O shield

ASUS

ASUS ROG Strix B650-A Gaming WiFi & Ryzen 9 9950X Combo AMD Motherboard

SKU CH-BX0M-4FJ5A

A motherboard and CPU bundle pairing an AM5 ATX board with 12+2 power stages, PCIe 5.0 M.2 slot, WiFi 6E and 2.5G LAN alongside a 16-core 32-thread Ryzen 9 9950X reaching 5.7 GHz boost

  • ProcessorSupports AMD Ryzen 7000 Series Desktop Processors* * Refer t
  • ChipsetAMD B650
  • Form factorATX
  • CPU socketAM5
  • Memory slot count4 × 288pin (DDR5)
  • Supported memoryDDR5 6400+(OC) / 6200(OC) / 6000(OC) / 5800(OC) / 5600(OC) /

Motherboard ROG Strix B650-A Gaming WiFi

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CPU + R9 9950X

  • Ready for next-gen Ryzen CPUs with AM5 socket
  • 16 cores and 32 threads deliver extreme multi-thread speed
  • 12 + 2 power stages ensure stable voltage under load
  • One PCIe 5.0 plus two PCIe 4.0 M.2 slots with heatsinks
  • WiFi 6E and 2.5G LAN provide fast wired and wireless networking

AM5 Combo for Ryzen 9 9950X

This bundle pairs an ASUS ROG Strix B650-A Gaming WiFi motherboard with the AMD Ryzen 9 9950X processor. The board uses the AMD B650 chipset and AM5 socket, supporting Ryzen 7000, 8000 and 9000 series CPUs. The CPU delivers 16 cores and 32 threads based on Zen 5 architecture with a 5.7 GHz max boost clock.

Suits high-core-count builds, not budget systems

Builders who need 16 cores for rendering, compilation or heavy multitasking will benefit from the 12 + 2 power stage design and 8 + 4 pin ProCool connectors. The platform supports up to 128 GB of DDR5 across four slots with EXPO profiles. Users seeking a lower-cost entry point or fewer cores should consider alternative chipsets or processors.

Sustained load handled by massive VRM heatsinks

Under continuous multi-threaded workloads the VRM heatsinks with airflow channels and high-conductivity thermal pads dissipate heat from the power stages. All three M.2 slots (one PCIe 5.0 x4, two PCIe 4.0 x4) include heatsinks to maintain SSD performance during long writes. The 2.5 GbE Intel LAN and WiFi 6E provide stable network throughput for extended transfers.

How it compares

Measured against everything we stock in Motherboards for AMD CPUs, at today’s prices. Recalculated every night.

Price $858.99
Pricier than about 81% of the 1,906 comparable items (median $224.49).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameASUS
Product lineROG
Model nameROG STRIX B650-A Gaming WiFi+R9 9950X
Processor
ProcessorSupports AMD Ryzen 7000 Series Desktop Processors*
* Refer to www.asus.com for CPU support list.
CPU socketAM5
ChipsetAMD B650
Memory
Memory slot count4 × 288pin (DDR5)
Supported memoryDDR5 6400+(OC) / 6200(OC) / 6000(OC) / 5800(OC) / 5600(OC) / 5400(OC) / 5200 / 5000 / 4800
* Supported memory types, data rate(Speed), and number of DRAM module vary depending on the CPU and memory configuration, for more information refer to www.asus.com for memory support list.
* Non-ECC, Un-buffered DDR5 Memory supports On-Die ECC function
Max supported RAM128 GB
Memory channelsDual Channel
ECC supportYes
BufferingUn-buffered
Storage
SATA ports4 x SATA 6Gb/s
SATA and RAID supportAMD RAIDXpert2 Technology supports both NVMe RAID 0/1/10 and SATA RAID 0/1/10
Audio & video
Audio chipRealtek ALC4080
Sound channelsROG SupremeFX 7.1 Surround Sound High Definition Audio CODEC ALC4080
- Impedance sense for front and rear headphone outputs
- Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking
- High quality 120 dB SNR stereo playback output and 113 dB SNR recording input
- Supports up to 32-Bit/384 kHz playback
Audio Features
- SupremeFX Shielding Technology
- Savitech SV3H712 AMP
- Premium audio capacitors
- Audio cover
Connectivity
Maximum network speed2.5 Gbit/s
Wi-Fi standardWi-Fi 6E
2 × 2 Wi-Fi 6E (802.11 a/b/g/n/ac/ax)
Supports 2.4/5/6 GHz frequency band*
* WiFi 6E 6 GHz regulatory may vary between countries, and function will be ready in Windows 11 or later.
Bluetooth supportv5.2
Ports & slots
PCIe 5.0 x16 slots1 x PCI Express 5.0 x16
PCIe x1 slots2 x PCIe 4.0/3.0 x1 slots
Onboard USB headers1 x USB 3.2 Gen 2 connector (supports USB Type-C )
1 x USB 3.2 Gen 1 header supports additional 2 USB 3.2 Gen 1 ports
2 x USB 2.0 headers support additional 4 USB 2.0 ports
Power
Power connectors1 × 24-pin Main Power connector
1 × 8-pin +12 V Power connector
1 × 4-pin +12 V Power connector
Size & build
Form factorATX
Width and length12.0 in × 9.6 in
Compatibility
Windows 11 supportSupported

Other versions of this model

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Questions about this item

What DDR5 memory speed must I already have for the board to run at its rated 6400 MHz?

The motherboard supports DDR5 up to 6400+(OC) with EXPO profiles, so you need DDR5 modules rated at 6400 MT/s or higher to reach that speed.

Will my existing PCIe 3.0 x1 add-in cards work in the two PCIe 4.0/3.0 x1 slots?

Yes, the two PCIe 4.0/3.0 x1 slots are backward compatible with PCIe 3.0 x1 cards, so older add-in cards will function normally.

How can I confirm the M.2_1 slot is running at PCIe 5.0 x4 after I install a drive?

Check the BIOS M.2 configuration screen — it will report the link width and generation for M.2_1, showing PCIe 5.0 x4 when a compatible drive is seated.

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