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MSI MAG B850 motherboard and Ryzen 9 9950X3D CPU combo in anti-static packaging

MSI

MSI MAG B850 GAMING PLUS MAX WIFI AMD motherboard & Ryzen 9 9950X3D CPU combo

SKU CH-QRHJ-3BZYF

AM5 motherboard with Ryzen 9 9950X3D CPU, DDR5 up to 8200 MT/s, PCIe 5.0 M.2, Wi-Fi 7 and 5G LAN

  • CPU socketAM5
  • ChipsetAMD B850
  • Form factorATX
  • Memory slot count4 × 288pin (DDR5)
  • Max supported RAM256 GB
  • Memory channelsDual Channel
  • 16-core Ryzen 9 9950X3D delivers elite multi-thread performance
  • 128 MB L3 cache accelerates gaming and heavy workloads
  • DDR5 memory boost up to 8200 MT/s OC maximises bandwidth
  • PCIe 5.0 M.2 slot enables fastest storage speeds
  • Wi-Fi 7 with 160 MHz channel reaches 2.9 Gbps wireless throughput

Combo for AM5 gaming builds

This bundle pairs an MSI MAG B850 GAMING PLUS MAX WIFI motherboard with an AMD Ryzen 9 9950X3D processor. The board uses the B850 chipset and supports DDR5 memory up to 8200 MT/s when overclocked. It targets enthusiasts who want a 170W Zen 5 CPU with 128MB L3 cache and integrated Radeon graphics on a single platform.

Verify cooler clearance and power delivery

Your case must fit a cooler rated for 170W TDP and the board's 4x288pin DDR5 slots require unbuffered non-ECC modules. The 64MB BIOS supports future AM5 upgrades but needs a compatible power supply for the 12V-2x6 or 8-pin EPS connector. Check that your M.2 drives match the PCIe 5.0 x4, 4.0 x4 or 4.0 x2 keying.

Replaces older AM4 or early AM5 combos

The jump is worth it when you need PCIe 5.0 x16 graphics bandwidth, Wi-Fi 7 with 160MHz channels and 5G LAN in one package. Triple M.2 slots with Shield Frozr cooling and EZ PCIe Release simplify high-speed storage and GPU swaps. The 2.9Gbps wireless ceiling and 5Gbps wired port suit modern multi-gigabit networks.

How it compares

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

Price $1,049.99
Pricier than about 90% 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 nameMSI
Model nameMAG B850 GAMING PLUS MAX WIFI+R9 9950 × 3D
Processor
CPU socketAM5
ChipsetAMD B850
Memory
Memory slot count4 × 288pin (DDR5)
Max supported RAM256 GB
Memory channelsDual Channel
ECC supportNon-ECC
BufferingUn-buffered
Storage
M.2 slots3 x M.2 (Support PCIe 5.0 x4, PCIe 4.0 x4, PCIe 4.0 x2)
Graphics
Onboard video chipDepends on installed processor
Audio & video
Audio chipRealtek ALC897
Sound channels7.1 Channels
Connectivity
Ethernet controllerRealtek 8126
Maximum network speed5 Gbit/s
Bluetooth supportYes
Ports & slots
PCIe 4.0 x16 slots1 x PCI Express 4.0 x16
PCIe 3.0 x16 slots1 x PCI Express 3.0 x16
Rear panel ports4 x USB 2.0
1 x USB 5 Gbit/s Type-A
1 x USB 10 Gbit/s Type-A
2 x USB 10 Gbit/s Type-C
1 x DisplayPort
Serial ports1
DisplayPort connectors1 x DisplayPort
Onboard USB headers4 x USB 5 Gbit/s + 4 x USB 2.0 + 1 x USB Type-C header, with USB 5 Gbit/s
Size & build
Form factorATX
Width and length243.84 mm × 304.8 mm
More details
LightingRGB

Questions about this item

What comes in the combo box and do I need to buy DDR5 memory separately?

The combo includes the MAG B850 GAMING PLUS MAX WIFI motherboard and the Ryzen 9 9950X3D processor. DDR5 modules are not included and must be purchased separately.

Should I choose a 256 GB DDR5 kit or a smaller one for this board?

The board supports up to 256 GB across four slots. A 256 GB kit fills all slots and leaves no room for later expansion, while a smaller kit leaves free slots for future upgrades.

What does the 8200 MT/s memory speed mean once the system is running?

8200 MT/s is the maximum overclocked DDR5 speed the board can reach. Actual speed depends on the memory kit, CPU memory controller and BIOS settings.

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