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ATX motherboard with large VRM heatsinks and CPU socket visible

ASUS

ASUS TUF GAMING B850-PLUS WIFI & Ryzen 7 9800X3D AMD motherboard

SKU CH-Q8KG-J07BD

A TUF Gaming B850 ATX motherboard paired with a Ryzen 7 9800X3D CPU, delivering 14+2+1 80A power stages, four DDR5 slots up to 192GB, dual M.2 PCIe 5.0, 2.5G LAN, Wi-Fi 7.

  • Number of Memory SlotsDDR5
  • Maximum Memory Supported192GB
  • Channel SupportedDual Channel
  • Form FactorATX
  • Dimensions (W x L)12.0" x 9.6"
  • Windows 11Windows 11 (22H2 & later)

Motherboard TUF GAMING B850 - PLUS WIFI

Struck-through versions exist but are not stocked here.

CPU + Ryzen 7 9800X3D

  • 14+2+1 80A power stages with 8-layer PCB for stable CPU delivery
  • 4 DDR5 slots support 192 GB dual-channel up to 8000+ MT/s via AEMP
  • Enlarged VRM, M.2 and PCH heatsinks with multi-source fan monitoring
  • Realtek 2.5G LAN plus Wi-Fi 7 2x2 tri-band up to 2.9 Gbps
  • 10 USB ports including 20 Gbps and 10 Gbps Type-C on rear and front

Motherboard & CPU Combo

This bundle pairs an ASUS TUF GAMING B850-PLUS WIFI motherboard with an AMD Ryzen 7 9800X3D processor. The board uses the AM5 socket and supports Ryzen 9000, 8000 and 7000 series CPUs. It is built for desktop builders who want a matched platform in a single package.

14+2+1 80A Power Design

The motherboard delivers power through a 14+2+1 phase VRM rated at 80A per stage on an 8-layer PCB with ProCool connectors. This specification determines whether the board can sustain high currents for the included CPU and future upgrades.

Suits DDR5 Builders Needing Wi-Fi 7

Four DDR5 slots support up to 192GB in dual channel with AEMP profiles reaching 8000+ MT/s. Onboard 2.5G LAN and Wi-Fi 7 (2.4/5/6 GHz tri-band) provide fast networking. Buyers needing a different socket or smaller form factor should look elsewhere.

Highlights

  • 14+2+1 80A power stages with 8-layer PCB for stable CPU delivery
  • 4 DDR5 slots support 192 GB dual-channel up to 8000+ MT/s via AEMP
  • Enlarged VRM, M.2 and PCH heatsinks with multi-source fan monitoring
  • Realtek 2.5G LAN plus Wi-Fi 7 2x2 tri-band up to 2.9 Gbps
  • 10 USB ports including 20 Gbps and 10 Gbps Type-C on rear and front

Specifications

BrandASUS
ModelTUF GAMING B850-PLUS WIFI+R7 9800X3D
Number of Memory SlotsDDR5
Maximum Memory Supported192GB
Channel SupportedDual Channel
Form FactorATX
Dimensions (W x L)12.0" x 9.6"
Windows 11Windows 11 (22H2 & later)

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

What does the 14+2+1 80A power design mean for a Ryzen 7 9800X3D in daily use?

The 14+2+1 phase VRM rated at 80A per phase delivers stable current to the CPU, letting the 9800X3D sustain high clocks under load without throttling.

How fast is the Wi-Fi 7 link in practice?

The 2x2 Wi-Fi 7 (802.11be) radio on 2.4, 5 and 6 GHz bands reaches a theoretical 2.9 Gbps; real-world throughput depends on router, distance and interference.

Will this ATX board fit in a standard mid-tower case?

Yes, the board measures 12.0 by 9.6 inches, matching the ATX form factor used by most mid-tower and larger cases.

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