ASUS
ASUS PRIME B850M-K AMD motherboard & Ryzen 9 9900X CPU combo
Pairs a B850 micro-ATX board with a 12-core 24-thread Ryzen 9 9900X CPU reaching 5.6 GHz boost, plus DDR5 8400 MT/s support, PCIe 5.0, three M.2 slots and 2.5 Gb Ethernet
- CPU Socket TypeAM5
Motherboard PRIME B850M-K
- PRIME B850M-K
- ROG STRIX B850-G Gaming WiFi S
- ROG STRIX B850-A GAMING WIFI S
- ROG STRIX B850-I GAMING WIFI
- ROG STRIX B850-F GAMING WIFI
- ROG STRIX B850-E GAMING WIFI
- TUF GAMING B850M-PLUS WIFI
- TUF GAMING B850M-PLUS
- TUF GAMING B850M-E WIFI
- TUF GAMING B850 - PLUS WIFI
- TUF GAMING B850-E WIFI
- TUF GAMING B850-BTF WIFI W
顯示另外 3 款選項
CPU + Ryzen 9 9900X
- 12-core Ryzen 9 9900X CPU delivers 5.6 GHz max boost for heavy workloads
- DDR5 memory scales to 8400 MT/s overclocked for high bandwidth
- Three M.2 slots provide up to 128 Gbps total storage throughput
- Realtek 2.5 Gb Ethernet plus rear USB 10 Gbps Type-A for fast wired connectivity
- 8+2+1 power modules on a 6-layer PCB with Digi+ VRM ensure stable power delivery
Combo motherboard and CPU
This bundle pairs an ASUS PRIME B850M-K motherboard with a Ryzen 9 9900X processor. The board uses the AM5 socket and a 6-layer PCB with 8+2+1 power modules. The CPU delivers 12 cores and 24 threads based on Zen 5 architecture with a 5.6 GHz max boost clock.
Suits high-performance builds
Builders who want a ready-matched platform for demanding workloads benefit from the combined DDR5 8400 MT/s overclocking headroom and PCIe 5.0 slot support. Users needing integrated Wi-Fi or a bundled cooler should consider other options as neither is included here.
DDR5 8400 MT/s overclocking ceiling
The motherboard supports memory speeds up to DDR5 8400 MT/s when overclocked, while the processor officially supports DDR5 5600. This gap determines whether your memory kit can run at its rated XMP or EXPO profile without manual tuning.
商品特色
- 12-core Ryzen 9 9900X CPU delivers 5.6 GHz max boost for heavy workloads
- DDR5 memory scales to 8400 MT/s overclocked for high bandwidth
- Three M.2 slots provide up to 128 Gbps total storage throughput
- Realtek 2.5 Gb Ethernet plus rear USB 10 Gbps Type-A for fast wired connectivity
- 8+2+1 power modules on a 6-layer PCB with Digi+ VRM ensure stable power delivery
商品規格
| Brand | ASUS |
|---|---|
| Model | PRIME B850M-K+R9 9900X |
| CPU Socket Type | AM5 |
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。
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商品問答
Does the box include a CPU cooler for the Ryzen 9 9900X?
The supplier description states the cooler is not included, so a separate AM5-compatible cooler must be purchased.
Which DDR5 speed should I target for the Ryzen 9 9900X on this board?
The CPU officially supports DDR5-5600 while the motherboard can reach DDR5 8400+ MT/s when overclocked; choose a kit rated for 5600 MT/s or higher.
What does the 5.6 GHz max boost mean for everyday workloads?
The 12-core, 24-thread processor can hit 5.6 GHz on lightly threaded tasks, delivering strong single-thread responsiveness while the 64 MB L3 cache helps multi-thread throughput.
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