ASUS ROG Strix B850-G Gaming WiFi AM5 Motherboard
- Processor Socket: Socket AM5
- Chipset Type: AMD B850
- Chipset Family: AMD B850
- RAM Memory Technology: DDR5
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A well-connected microATX AM5 board, worth it for builders who want DDR5, four M.2 slots and WiFi 7 without moving up to full ATX size.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B0FH7MB8WVModel: B850-GCategory: Motherboards
Styles Available
Need a different one? Pick on Amazon →
Overview
A microATX motherboard built for AMD's AM5 platform and B850 chipset, aimed at Ryzen 7000, 8000 and 9000 series builds that want DDR5 memory, WiFi 7 and four M.2 slots in a smaller form factor.
Four M.2 slots on a microATX board is unusual and the headline reason to consider this one: one PCIe 5.0 slot and two PCIe 4.0 slots sit under a shared heatsink, with a fourth PCIe 4.0 slot underneath the board for extra storage without crowding the top side. The 14+2+1 power stage design rated at 80A each is aimed at supporting AMD's higher core-count Ryzen chips rather than just entry-level ones.
- AMD AM5 socket, Ryzen 7000/8000/9000 support
- Four M.2 slots, one PCIe 5.0 ready
- WiFi 7 and 2.5G Ethernet
- 14+2+1 power stage design
Who it's for
Suits AM5 builders who want a compact board without giving up storage expansion or future WiFi 7 networking. Less relevant for anyone who needs full ATX slot count or is building on an older AM4 platform.
Pros and cons
- Four M.2 slots including one PCIe 5.0
- DDR5 memory support with WiFi 7 and 2.5G LAN
- 14+2+1 power stages for higher core-count Ryzen chips
- DIY-friendly Q-Release latches and Q-LED debugging
- MicroATX size means fewer expansion slots than full ATX
- Full WiFi 7 speed needs Windows 11 24H2 or newer
Performance notes
The 14+2+1 power stage solution with an 8+8-pin ProCool connector is what lets the board feed higher core-count Ryzen processors without cutting corners on stability, and the VRM heatsinks bridged with thermal pads help manage the heat that setup generates. On-board WiFi 7 requires Windows 11 24H2 or later to reach full speed, with older Windows versions capped at WiFi 6E or WiFi 6.
Specifications
| Brand | Asus |
|---|---|
| Model | B850-G |
| Dimensions & fit | |
| Ram Memory Maximum Size | 256 GBhigher than 59% of 23 motherboards |
| Item Weight | 2.9 pounds |
| Item Dimensions L x W x H | 9.6 × 9.6 × 1.9 inches |
| Capacity & performance | |
| Memory Storage Capacity | 256 GB |
| Memory Clock Speed | 8000 MHz |
| Power & efficiency | |
| Main Power Connector Type | 24-Pin |
| Compatibility & installation | |
| Graphics Card Interface | PCI Express |
| Compatible Devices | Personal Computer |
| Included components | |
| Unit Count | 1 |
| Number of Packs | 1 |
| Warranty & support | |
| Warranty Description | 3 years |
| Other details | |
| Processor Socket | Socket AM5 |
| Chipset Type | AMD B850 |
| Chipset Family | AMD B850 |
| RAM Memory Technology | DDR5 |
| CPU Model | Ryzen 7 |
| Memory Slots Available | 4 |
| Total PCIe Ports | 2 |
| Total Usb Ports | 17 |
| Total SATA Ports | 4 |
| Number of Ethernet Ports | 1 |
| Platform | Windows 10, Windows 11 |
| Number of Items | 1 |
| Number of Ports | 20 |
| Total Number of HDMI Ports | 1 |
| Mfr Part Number | ROG STRIX B850-G GAMING WIFI |
Closest rivals on specs
GIGABYTE B550 Eagle WIFI6 AM4 ATX Motherboard- Memory Storage Capacity 256 vs 128 GB (+100%)
- Ram Memory Maximum Size 256 vs 128 GB (+100%)
Frequently asked questions
Does the ASUS ROG Strix B850-G support DDR4?
No, this board is DDR5 only, matching AM5's memory requirement.
How many M.2 slots does it have?
Four total: one PCIe 5.0 M.2 slot and two PCIe 4.0 M.2 slots under a shared heatsink on top, plus a fourth PCIe 4.0 slot on the underside of the board.
Do I need a specific Windows version for WiFi 7?
Full WiFi 7 functionality needs Windows 11 24H2 or later; earlier Windows 11 versions are limited to WiFi 6E and Windows 10 only supports WiFi 6.