ASUS TUF GAMING B850M-PLUS WIFI + Ryzen 9 9900X3D AMD motherboard & CPU combo
- AM5
- AMD B850
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Pairs an AM5 motherboard with a 16-core Ryzen 9 9950X, DDR5 to 192 GB, WiFi 7, 2.5 Gbps LAN, four M.2 slots and 19 USB ports including 20 Gbps Type-C
Motherboard ROG STRIX B850-F GAMING WIFI
CPU + Ryzen 9 9950X
This bundle pairs an ASUS ROG STRIX B850-F GAMING WIFI motherboard with an AMD Ryzen 9 9950X processor. The 16-core CPU reaches a 5.7 GHz max boost and provides 32 threads for heavy multitasking. The board uses the AM5 socket and B850 chipset to support Ryzen 7000, 8000 and 9000 series chips. It targets builders who need strong single-thread speed and high core counts for local AI inference or content creation.
Drop the CPU into the AM5 socket, lock the lever, and attach the cooler — no brackets to swap. The 16+2+2 power stages rated at 80 A each feed the 9950X cleanly through dual ProCool connectors. Four 288-pin DDR5 slots accept up to 192 GB; enable EXPO or AEMP in BIOS for rated speeds. Common issues: forgetting to seat the 20 Gbps front-panel USB-C header, or leaving the WiFi 7 antenna off the rear I/O.
The primary PCIe 5.0 x16 slot runs at full speed with Ryzen 9000 and 7000 CPUs and includes Q-Release Slim for easy GPU swaps. Two M.2 slots (2242, 2260, 2280 and 2280, 22110) operate at PCIe 5.0 x4 when a 9000 or 7000 series processor is installed. This bandwidth ceiling decides whether your fastest GPU and system drive can run without sharing lanes.
Measured against everything we stock in Motherboards for AMD CPUs, at today’s prices. Recalculated every night.
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| Product | |
|---|---|
| Brand name | ASUS |
| Model name | ROG STRIX B850-F GAMING WIFI+R9 9950X |
| Processor | |
| CPU socket | AM5 |
| Chipset | AMD B850 |
| Memory | |
| Memory slot count | 4 × 288pin (DDR5) |
| Max supported RAM | 192 GB |
| Memory channels | Dual Channel |
| ECC support | Yes |
| Buffering | Un-buffered |
| Storage | |
| SATA ports | 2 x SATA 6Gb/s |
| SATA and RAID support | 0/1/5/10 |
| Audio & video | |
| Audio chip | Realtek ALC4080 |
| Sound channels | ROG SupremeFX 7.1 Surround Sound High Definition Audio CODEC ALC4080* - Impedance sense for front and rear headphone outputs - Supports: Jack-detection, Multi-streaming, Front Panel MIC Jack-retasking - High quality 120 dB SNR stereo playback output and 110 dB SNR recording input - Supports up to 32-Bit/384 kHz playback on front panel Audio Features - SupremeFX Shielding Technology - Savitech SV3H712 AMP - Rear optical S/PDIF out port - Premium audio capacitors - Audio cover |
| Connectivity | |
| Maximum network speed | 2.5 Gbit/s |
| Wi-Fi standard | Wi-Fi 802.11 be |
| Bluetooth support | 5.4 |
| Ports & slots | |
| Onboard USB headers | 1 x USB 10 Gbit/s connector (supports USB Type-C) 1 x USB 5 Gbit/s header supports 2 additional USB 5 Gbit/s ports 2 x USB 2.0 headers support 4 additional USB 2.0 ports |
| Power | |
| Power connectors | 1 × 24-pin Main Power connector 2 × 8-pin +12 V CPU Power connector |
| Size & build | |
| Form factor | ATX |
| Width and length | 12.0 in × 9.6 in |
| Compatibility | |
| Windows 11 support | Supported |
| More details | |
| BIOS | 256 Mb Flash ROM, UEFI AMI BIOS |
Other versions of this model
Enter the UEFI and check the hardware monitor for CPU Vcore readings under load; the AI Advisor can also flag any voltage irregularities in real time.
The box contains the ROG STRIX B850-F GAMING WIFI motherboard and the Ryzen 9 9950X processor; you must add DDR5 modules, M.2 storage, a graphics card, a CPU cooler and a power supply.
Install the drive in M.2_1, which is wired directly to the CPU and supports PCIe 5.0 x4 mode for Ryzen 9000 series processors.
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