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ASUS TUF Gaming B850M-PLUS WIFI motherboard with Ryzen 9 9950X CPU, matte black PCB, silver heatsinks, mATX layout

ASUS

ASUS TUF GAMING B850M-PLUS WIFI + Ryzen 9 9950X Combo AMD motherboard

SKU CH-GSSY-DMFCA

A B850 motherboard paired with a 16-core Ryzen 9 9950X, 14+2+1 80A DrMOS power, DDR5 to 8000 MT/s, PCIe 5.0 x16, three M.2 slots, Wi-Fi 6E and 2.5Gb LAN

  • CPU socketAM5
  • ChipsetAMD B850
  • Form factorMicro ATX
  • Memory slot count4 × 288pin (DDR5)
  • Supported memoryUp to 8000+MT/s (OC)
  • Max supported RAM192 GB

Motherboard TUF GAMING B850M-PLUS WIFI

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CPU + Ryzen 9 9950X

  • 16 cores and 32 threads handle heavy multitasking with Ryzen 9 9950X
  • 7 GHz max boost speeds up single-thread workloads on Zen 5 architecture
  • 14+2+1 80A DrMOS stages deliver stable power for overclocking headroom
  • PCIe 5.0 M.2 slot and two PCIe 4.0 M.2 slots enable fast storage expansion
  • Wi-Fi 6E and 2.5Gb Ethernet provide low-latency network connectivity

Combo for AM5 builders

This bundle pairs an ASUS TUF GAMING B850M-PLUS WIFI motherboard with a Ryzen 9 9950X processor. The board uses the AMD B850 chipset on an mATX form factor with an AM5 socket. The CPU delivers 16 cores and 32 threads based on Zen 5 architecture with a 5.7 GHz maximum boost clock. It targets enthusiasts who want a high-core-count platform for heavy multitasking and content creation.

Sustained power delivery

The motherboard employs 14+2+1 80A DrMOS stages on an 8-layer PCB with 8+8 pin ProCool connectors, alloy chokes and durable capacitors. Enlarged VRM and M.2 heatsinks plus a PCH heatsink work with hybrid fan headers and Fan Xpert 4 to manage thermals during long workloads. Four DDR5 slots support up to 192 GB at speeds up to 8000+ MT/s with EXPO and AEMP profiles. A single PCIe 5.0 x16 slot and three M.2 slots (one PCIe 5.0, two PCIe 4.0) provide high-bandwidth expansion without throttling.

Upgrade path from older AM5

The combo moves a system to the 9000-series CPU and B850 chipset with PCIe 5.0 on the primary M.2 and graphics slot, plus rear USB 20Gbps Type-C and front USB 10Gbps Type-C headers. Connectivity adds Wi-Fi 6E and Realtek 2.5Gb Ethernet alongside Realtek ALC1220P 7.1 audio. DIY features include PCIe Slot Q-Release, M.2 Q-Latch, Q-Antenna, Q-Dashboard, Q-LED and BIOS FlashBack. The jump is worthwhile when workloads need 16 cores, DDR5 bandwidth above 5600 MT/s and PCIe 5.0 storage or GPU throughput.

How it compares

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

Price $902.99
Pricier than about 83% of the 1,906 comparable items (median $224.49).

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Specifications

Product
Brand nameASUS
Model nameTUF GAMING B850M-PLUS WIFI+R9 9950X
Processor
CPU socketAM5
ChipsetAMD B850
Memory
Memory slot count4 × 288pin (DDR5)
Supported memoryUp to 8000+MT/s (OC)
Max supported RAM192 GB
Memory channelsDual Channel
ECC supportYes
BufferingUn-buffered
Storage
SATA ports4 x SATA 6Gb/s
M.2 slotsAMD Ryzen 9000 & 7000 Series Desktop Processors
M.2_1 slot (Key M), type 2280 (supports PCIe 5.0 x4 mode)
M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode)
AMD Ryzen 8000 Series Desktop Processors
M.2_1 slot (Key M), type 2280 (supports PCIe 4.0 x4 mode)
M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4/x2 mode)**
AMD B850 Chipset
M.2_3 slot (Key M), type 2280 (supports PCIe 4.0 x4 mode)
SATA and RAID supportAMD RAIDXpert2 Technology supports both PCIe RAID 0/1/5/10 and SATA RAID 0/1/5/10.
*RAID 5 Function is only supported by AMD Ryzen 9000 series CPU.
Audio & video
Audio chipRealtek ALC1220P
Sound channelsRealtek ALC1220P 7.1 Surround Sound High Definition Audio CODEC
- Impedance sense for front and rear headphone outputs
- Internal audio Amplifier to enhance the highest quality sound for headphone and speakers
- Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking
- High quality 120 dB SNR stereo playback output and 113 dB SNR recording input (Line-in)
- Supports up to 32-Bit/192 kHz playback*
Audio Features
- Audio Shielding
- Premium audio capacitors
- Dedicated audio PCB layers
- Audio cover
- Unique de-pop circuit
* Due to limitations in HDA bandwidth, 32-Bit/192
Connectivity
Maximum network speed2.5 Gbit/s
Wi-Fi standardWi-Fi 802.11 ax
Bluetooth support5.3
Ports & slots
PCIe 5.0 x16 slotsAMD Ryzen 9000 & 7000 Series Desktop Processors
1 x PCIe 5.0 x16 slot (supports x16 mode)
PCIe 4.0 x16 slotsAMD Ryzen 8000 Series Desktop Processors
1 x PCIe 4.0 x16 slot (supports x8/x4 mode)
PCIe x1 slotsAMD B850 Chipset
1 x PCIe 4.0 x1 slot
Onboard USB headers1 x USB 10 Gbit/s connector (supports USB Type-C)
1 x USB 5 Gbit/s header supports 2 additional USB 5 Gbit/s ports
2 x USB 2.0 headers support 3 additional USB 2.0 ports
Power
Power connectors1 × 24-pin Main Power connector
2 × 8-pin +12 V CPU Power connectors
Size & build
Form factorMicro ATX
Width and length9.6 in × 9.6 in
Compatibility
Windows 11 supportSupported
More details
BIOS256 Mb Flash ROM, UEFI AMI BIOS

Other versions of this model

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Questions about this item

How hot or loud does the 14+2+1 80A DrMOS power stage run with the Ryzen 9 9950X at full load all day?

The board uses 14+2+1 80A DrMOS stages, an 8-layer PCB, alloy chokes and durable capacitors. Enlarged VRM heatsinks and hybrid fan headers controlled by Fan Xpert 4 manage thermals during sustained workloads.

Which DDR5 memory kit must I already own to reach the 8000+ MT/s overclocked speed listed for this board?

Four 288-pin DDR5 modules up to 192 GB total. The board supports EXPO and AEMP profiles for automatic overclocking to 8000+ MT/s when compatible kits are installed.

Will my PCIe 4.0 graphics card and SATA drives work at full speed in the PCIe 5.0 x16 slot and the four SATA 6Gb/s ports?

Yes. The PCIe 5.0 x16 slot runs PCIe 4.0 cards at x16 or x8/x4 speeds depending on the CPU generation, and the four SATA 6Gb/s ports provide native bandwidth for existing drives.

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