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ATX motherboard with CPU installed, dark grey heatsinks and metallic accents

ASUS

ASUS TUF GAMING B650EM-PLUS WIFI & Ryzen 9 9900X AMD motherboard CPU combo

SKU CH-4JGM-WY6BS

Socket AM5 motherboard and 12-core 24-thread Ryzen 9 9900X CPU combo with DDR5, PCIe 5.0 M.2, USB4, WiFi 6E and 2.5 Gb Ethernet

  • CPU Socket TypeAM5

Motherboard TUF GAMING B650EM-PLUS WIFI

Show 3 more configurations

CPU + R9 9900X

  • Ready for Ryzen 9000, 8000 and 7000 series processors on AM5 socket
  • Stable power delivery with 12+2 teamed power stages and ProCool sockets
  • High-speed storage via PCIe 5.0 M.2 and USB4 support
  • Low-latency gaming network with WiFi 6E and 2.5 Gb Ethernet
  • 12-core Ryzen 9 9900X reaches 5.6 GHz max boost for heavy workloads

Combo for AM5 builders

This bundle pairs the ASUS TUF GAMING B650EM-PLUS WIFI motherboard with an AMD Ryzen 9 9900X processor. The board uses the AM5 socket and supports Ryzen 7000, 8000 and 9000 series CPUs. A BIOS update may be needed before a 9000 or 8000 series chip will boot. The 12-core, 24-thread 9900X runs at up to 5.6 GHz and works with DDR5-5600 memory.

Connectivity and power limits

The board provides one M.2 slot wired for PCIe 5.0 speeds, USB 3.2 Gen2x2 Type-C and USB4 support. Networking uses WiFi 6E and a Realtek 2.5 Gb Ethernet controller with TUF LANGuard protection. Power delivery uses 12+2 teamed stages fed by 8+4 ProCool connectors, alloy chokes and durable capacitors. Two-way AI noise cancellation cleans microphone and output audio.

12-core Zen 5 CPU decides fit

The Ryzen 9 9900X brings 12 cores, 24 threads, 64 MB L3 cache and a 5.6 GHz maximum boost clock on the Zen 5 architecture. If your workload needs that core count and frequency headroom, this combo matches; otherwise a lower-tier processor may suit the same board better.

Highlights

  • Ready for Ryzen 9000, 8000 and 7000 series processors on AM5 socket
  • Stable power delivery with 12+2 teamed power stages and ProCool sockets
  • High-speed storage via PCIe 5.0 M.2 and USB4 support
  • Low-latency gaming network with WiFi 6E and 2.5 Gb Ethernet
  • 12-core Ryzen 9 9900X reaches 5.6 GHz max boost for heavy workloads

Specifications

BrandASUS
ModelTUF GAMING B650EM-PLUS WIFI+R9 9900X
CPU Socket TypeAM5

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

Will the Ryzen 9 9900X work on this motherboard without a BIOS update?

The 9900X is a 9000-series CPU, and the board notes that a BIOS update may be required for 9000 and 8000 series processors. BIOS FlashBack lets you update the UEFI without an older CPU installed.

What memory speed and generation does this combo support?

The 9900X officially supports DDR5-5600. The board runs DDR5 only, so install DDR5 modules; speeds above 5600 will depend on the memory kit and motherboard QVL.

What high-speed storage and USB connections are available on the board?

One M.2 slot runs at PCIe 5.0 for the fastest drives. Rear I/O includes a USB 3.2 Gen2x2 Type-C port and a front-panel USB 3.2 Gen 1 Type-C header, plus USB4 support.

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