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ASUS TUF B850 ATX motherboard and Ryzen 9 9900X3D CPU combo in retail packaging

ASUS

ASUS TUF GAMING B850-PLUS WIFI + Ryzen 9 9900X3D AMD motherboard combo

SKU CH-GRNE-KJH8Z

AM5 motherboard and CPU bundle with 14+2+1 80A power delivery, four DDR5 slots, 2.5G LAN, Wi-Fi 7 and dual PCIe 5.0 M.2 slots

  • 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 9 9900X3D

  • Stable power delivery with 14+2+1 80A phases and 8-layer PCB
  • DDR5 memory overclocks to 8000+ MT/s via AEMP across four slots
  • Enlarged VRM, M.2 and PCH heatsinks with multi-source fan monitoring
  • 5G wired plus Wi-Fi 7 tri-band up to 2.9Gbps
  • Rear USB 20Gbps Type-C and three 10Gbps ports plus front 10Gbps Type-C

Combo Contents

This package pairs the ASUS TUF GAMING B850-PLUS WIFI motherboard with an AMD Ryzen 9 9900X3D processor. The board uses the AM5 socket and supports Ryzen 9000, 8000 and 7000 series CPUs. It delivers a 14+2+1 (80A) power design on an 8-layer PCB with ProCool connectors for stable operation.

Compatibility Checks

Verify that your chassis accepts an ATX board measuring 12.0" x 9.6". Confirm your power supply provides the required ATX 12V and CPU power connectors for the 120W processor. Ensure you have DDR5 modules for the four dual-channel slots supporting up to 192GB total capacity. Check that your operating system is Windows 11 22H2 or later.

Ideal Use Cases

This combo suits builders who want a ready-matched CPU and motherboard with strong VRM cooling, Wi-Fi 7 and 2.5G wired networking. It also fits users needing dual M.2 PCIe 5.0 slots and multiple 10Gbps plus one 20Gbps USB ports. Buyers requiring a smaller form factor or a different socket should consider other options.

Highlights

  • Stable power delivery with 14+2+1 80A phases and 8-layer PCB
  • DDR5 memory overclocks to 8000+ MT/s via AEMP across four slots
  • Enlarged VRM, M.2 and PCH heatsinks with multi-source fan monitoring
  • 5G wired plus Wi-Fi 7 tri-band up to 2.9Gbps
  • Rear USB 20Gbps Type-C and three 10Gbps ports plus front 10Gbps Type-C

Specifications

BrandASUS
ModelTUF GAMING B850-PLUS WIFI+R9 9900X3D
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

Does the box include RAM modules or just the motherboard and CPU?

The combo contains the TUF GAMING B850-PLUS WIFI motherboard and the Ryzen 9 9900X3D processor. DDR5 memory must be purchased separately; the board has four slots supporting up to 192 GB dual-channel.

Should I pick the 8000 MT/s overclock target or a lower speed for daily use?

With AEMP technology the board can reach 8000+ MT/s (OC) on Ryzen 9000/8000/7000 CPUs. Choose a validated kit at that speed for maximum throughput, or a lower-rated kit for plug-and-play stability.

What does the 2.9 Gbps Wi-Fi 7 figure mean for actual throughput?

That is the peak PHY rate of the 2x2 802.11be radio on the 2.4, 5 and 6 GHz bands. Real-world throughput will be lower due to overhead, distance and interference, but it exceeds 2.5G wired for nearby clients.

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