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White mATX motherboard with silver VRM heatsinks and black PCB visible

ASUS

ASUS ROG Strix B850-G Gaming WiFi S AMD AM5 mATX white Motherboard

SKU CH-FF1J-HYGP0

mATX AM5 board with 14+2+1 power stages, DDR5 up to 256 GB, WIFI 7, PCIe 5.0 x16 and four M.2 slots

  • CPU socketAM5
  • Supports up to 256GB DDR5 memory across four slots
  • 14+2+1 power stages deliver stable CPU power
  • PCIe 5.0 x16 slot enables high-speed graphics
  • WIFI 7 provides fast wireless connectivity
  • White mATX design fits compact builds

AMD AM5 mATX board for compact Ryzen builds

This micro-ATX motherboard fits AMD Ryzen 7000, 8000 and 9000 series processors into smaller cases. It targets gamers and creators who want high-end features without a full-size ATX footprint. The white finish suits light-themed builds.

256 GB DDR5 capacity with four slots

Four DIMM slots accept up to 256 GB of DDR5 memory and support AEMP profiles for easier tuning. The board provides one PCIe 5.0 x16 slot for a graphics card and four M.2 sockets for storage expansion. Builders needing more than one full-length add-in card or more than four M.2 drives will run out of room.

14+2+1 power stages on an 8-layer PCB

The VRM uses 14+2+1 power stages covered by thermal armor to handle sustained loads. An 8-layer PCB aids signal integrity for DDR5 and PCIe 5.0. Connectivity includes WIFI 7 and a USB 20 Gbps Type-C port. The mATX layout limits rear I/O space and multi-GPU configurations are not possible.

How it compares

Measured against everything we stock in Motherboards for AMD CPUs, at today’s prices. Recalculated every night.

Price $304.99
Pricier than about 56% of the 1,906 comparable items (median $224.49).

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Specifications

Product
Brand nameASUS
Model nameASUS ROG Strix B850-G Gaming WiFi S
Processor
CPU socketAM5

Questions about this item

Will my existing DDR5 memory kit work with the 256 GB limit on this B850 board?

Yes, the four DIMM slots accept DDR5 modules up to a combined 256 GB, so any standard DDR5 kit within that capacity will be compatible.

How can I confirm the PCIe 5.0 x16 slot is running at full speed after I install a graphics card?

Check the BIOS PCIe configuration screen or use a system-info utility such as GPU-Z; both will report the active link width and generation for the primary x16 slot.

Does the box include Wi-Fi 7 antennas and M.2 screws, or do I need to buy them separately?

The retail package supplies the Wi-Fi 7 antenna kit and M.2 mounting screws; no extra accessories are required for wireless or storage installation.

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