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Micro-ATX board with silver heatsinks and Ryzen 9 9900X3D processor installed

ASUS

ASUS PRIME B650M-K & Ryzen 9 9900X3D AMD motherboard combo

SKU CH-8XBC-Z93H2

Micro-ATX board with DDR5 memory support up to 6400 MHz and 2.5 Gb Ethernet paired with a 12-core Zen 5 processor featuring 128 MB L3 cache and integrated Radeon graphics

  • CPU TypeComputer Accessories

model PRIME B650M-K

顯示另外 2 款選項

+CPU +Ryzen 9 9900X3D

  • Ryzen 9 9900X3D with 128 MB L3 cache for high-thread workloads
  • PRIME B650M-K micro-ATX board with DDR5 support up to 6400 MHz
  • Dual-channel memory architecture with 96 GB maximum capacity for large datasets
  • 5 Gb Ethernet plus USB 3.2 Gen 1 and USB 2.0 front-panel headers
  • Four SATA III ports and M.2 slot for mixed HDD and SSD storage

Combo foundation

This bundle pairs a Micro‑ATX B650M‑K board with a Ryzen 9 9900X3D processor in a single package. The board delivers dual‑channel DDR5 memory support up to 6400 MHz and a maximum capacity of 96 GB across two DIMM slots. A 2.5 Gb Ethernet port and multiple USB connectors handle networking and peripherals without extra cards.

Build fit

The combination suits builders who want a compact AM5 platform with the 9900X3D’s 120 W thermal design power and integrated Radeon graphics for display output without a discrete GPU. Systems that require multi‑GPU configurations or more than two memory modules should consider a larger ATX board with additional PCIe and DIMM slots.

Deciding spec

The motherboard provides two DDR5 slots limited to 96 GB total, so memory capacity is fixed by that ceiling. If your workload demands more than 96 GB of RAM, this board cannot meet it and a four‑slot alternative is required.

商品特色

  • Ryzen 9 9900X3D with 128 MB L3 cache for high-thread workloads
  • PRIME B650M-K micro-ATX board with DDR5 support up to 6400 MHz
  • Dual-channel memory architecture with 96 GB maximum capacity for large datasets
  • 5 Gb Ethernet plus USB 3.2 Gen 1 and USB 2.0 front-panel headers
  • Four SATA III ports and M.2 slot for mixed HDD and SSD storage

商品規格

BrandASUS
ModelPRIME B650M-K+R9 9900X3D
CPU TypeComputer Accessories

其他版本

同系列還有 5 款

同系列產品，記憶體、散熱器或時脈不同 — 下單前請先比較。

商品問答

Which combo should I pick if I need the highest CPU cache?

This bundle pairs the PRIME B650M-K board with the Ryzen 9 9900X3D, which carries 128 MB of L3 cache and 12 MB of L2 cache — the largest cache option in the listing.

What does the 120 W CPU rating mean once the system is running?

The 120 W figure is the processor's base power; under heavy all-core loads the chip can draw more, so plan cooling and a power supply that can sustain higher peaks.

What M.2 standard does the board use and what speed ceiling does it impose?

The PRIME B650M-K provides a PCIe 5.0 M.2 slot, so a compatible drive can reach the full Gen 5 throughput the interface allows.

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