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ASUS TUF Gaming B850M-Plus motherboard with Ryzen 9 9950X3D CPU installed, matte black mATX board with grey heatsinks

ASUS

ASUS TUF Gaming B850M-Plus WiFi + Ryzen 9 9950X3D AMD Motherboard & CPU Combo

SKU CH-WKQA-YG0SR

A motherboard and CPU combo pairing a B850 mATX board with 14+2+1 80A DrMOS power, PCIe 5.0 x16, Wi-Fi 6E, 2.5Gb LAN, USB 20Gbps Type-C and three M.2 slots with a 16-core Ryzen 9 9950X3D featuring

  • 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 9950X3D

  • Stable power for heavy workloads
  • 14+2+1 80A DrMOS stages with 8-layer PCB
  • One PCIe 5.0 M.2 plus two PCIe 4.0 M.2 slots with large heatsink
  • Wi-Fi 6E and 2.5Gb LAN plus rear USB 20Gbps Type-C and front USB 10Gbps Type-C
  • 16-core Ryzen 9 9950X3D with 128MB L3 cache and Radeon graphics

AM5 Motherboard and Ryzen 9 9950X3D Combo

This bundle pairs an ASUS TUF Gaming B850M-Plus WiFi motherboard with an AMD Ryzen 9 9950X3D processor. The board uses the AMD B850 chipset on an AM5 socket in a micro-ATX layout. It delivers a 14+2+1 80A DrMOS power design, four DDR5 slots supporting up to 192GB, and a 170W CPU ready for advanced AI workloads.

Best for High-End Gaming and AI Builds

The combination suits builders who want a compact board with strong VRM cooling, PCIe 5.0 graphics and storage, Wi-Fi 6E, and 2.5Gb LAN. The 128MB L3 cache on the CPU benefits cache-sensitive titles. Users needing more than four memory slots, a full-size ATX form factor, or a lower-power processor should consider other options.

PCIe 5.0 M.2 and x16 Slots Decide Fit

The motherboard provides one PCIe 5.0 x16 slot for graphics and one PCIe 5.0 M.2 2280 slot for the fastest SSDs. Two additional M.2 sockets run at PCIe 4.0 speeds. If your GPU or primary drive requires PCIe 5.0 bandwidth in a micro-ATX chassis, this board meets that requirement; otherwise a B850 board without 5.0 M.2 may suffice.

How it compares

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

Price $1,052.99
Pricier than about 90% of the 1,906 comparable items (median $224.49).

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Specifications

Product
Brand nameASUS
Model nameTUF GAMING B850M-PLUS WIFI+R9 9950 × 3D
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

Will the Ryzen 9 9950X3D fit in a standard AM5 cooler mounting pattern?

Yes, the CPU uses the AM5 socket which retains the same cooler mounting holes as previous AM5 and AM4 designs, so existing compatible coolers will fit.

Does the motherboard provide enough power phases for the 170W CPU without throttling?

The 14+2+1 80A DrMOS stages and 8+8 pin ProCool connectors are designed to deliver stable current for high-wattage processors like the 9950X3D.

Can I run four DDR5 modules at the rated 8000 MT/s speed?

The board supports up to 192 GB across four slots with EXPO and AEMP profiles, but maximum stable frequency with all slots populated depends on the memory kit and CPU memory controller.

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