ASUS ROG STRIX B850-G Gaming WiFi - AMD AM5 mATX Motherboard
ASUS ROG
ASUS ROG STRIX B850-G Gaming WiFi - AMD AM5 mATX Motherboard
The ASUS ROG STRIX B850-G Gaming WiFi is a micro-ATX motherboard built for AMD Ryzen 9000, 8000 and 7000 Series processors, combining PCIe 5.0 storage bandwidth, WiFi 7 connectivity and AI-accelerated performance tuning. It suits builders seeking compact high-end gaming and workstation builds with modern CPU and memory support.
Why this product
PCIe 5.0 and four M.2 slots
One M.2 slot delivers 16 GB/s reads and writes via PCIe 5.0; the other three run PCIe 4.0 at 8 GB/s. Support for 2242, 2260 and 2280 form factors across all four slots.
WiFi 7 with 2.9 Gbps peak throughput
2x2 802.11be radio covers 2.4, 5 and 6 GHz bands and supports 160 MHz channels. Pairs with Intel 2.5 Gb Ethernet and three USB 10 Gbps ports for wired redundancy.
14+2+1 power stages rated to 80A each
Robust VRM with 5K metallic capacitors and heatsink design. Supports EXPO and AEMP memory profiling for stable overclocking.
AI Cache Boost on Ryzen 9000 CPUs
BIOS setting optimizes CPU cache and memory pathways for up to 29% faster local LLM inference. Exclusive to ASUS AMD 800 and 600 series boards paired with Ryzen 9000.
USB 20 Gbps and 10 Gbps rear I/O
One USB 20 Gbps Type-C port, three USB 10 Gbps ports (two Type-A, one Type-C), four USB 5 Gbps Type-A and two USB 2.0 ports on the rear. USB 10 Gbps front-panel header included.
- ChipsetAMD B850
- SocketAMD AM5
- Form FactorMicro-ATX (9.6 × 9.6 inches)
- Memory Slots4 × DDR5 DIMM, max 256 GB
- M.2 Slots4 (one PCIe 5.0, three PCIe 4.0)
- Storage Ports2 × SATA 6 Gb/s
- WirelessWiFi 7 (802.11be), Bluetooth 5.4
- Rear USB1 × USB 20 Gbps, 3 × USB 10 Gbps, 4 × USB 5 Gbps, 2 × USB 2.0
- SKUASU-2745
- EAN4711636092265
- AMD Ryzen 9000, 8000 and 7000 Series desktop processors in Socket AM5.
- DDR5 memory up to 256 GB across four DIMM slots, with support for EXPO profiles and speeds up to 8000+ MT/s on Ryzen 9000 and 8000.
- Micro-ATX cases with 9.6 × 9.6 inch motherboard clearance and standard 24-pin ATX and dual 8-pin 12V power connectors.
- PCIe 5.0 x16 slot operates as PCIe 4.0 x8/x4 on Ryzen 8000 Series; full x16 PCIe 5.0 on Ryzen 9000 and 7000.
- M.2_2 slot runs PCIe 5.0 on Ryzen 9000 and 7000, but PCIe 4.0 x4/x2 on Ryzen 8000 Series.
- Older AM4 Ryzen processors; this board requires Socket AM5.
Best for
- Compact high-performance gaming and workstation builds
- Builders needing NVMe speed without a full-size ATX footprint
- AI and LLM workflows on Ryzen 9000 CPUs with AI Cache Boost optimization
- High-bandwidth networking setups with WiFi 7 and multiple USB 10 Gbps ports
- Overclockers using EXPO memory profiles and high-stage power delivery
Trade-offs
- Builders using AM4 Ryzen processors; this board is Socket AM5 only.
- Budget builds. The ROG branding, PCIe 5.0 and WiFi 7 push cost well above entry-level B850 boards.
- Systems needing analog audio via surround-sound speakers; only one Optical S/PDIF output and no separate line-level outputs.
- Storage-heavy builds without external expansion; only two SATA ports limit HDD arrays to a maximum of six drives (four NVMe + two SATA).
Unleash next-gen performance with the ROG Strix B850-G Gaming WiFi. Built with a sleek white PCB and featuring support for AMD Ryzen™ 9000 Series processors and cutting-edge DDR5 memory, this motherboard is equipped for top-tier gaming. PCIe® 5.0, USB 20Gbps Type-C® and WiFi 7 ensure unmatched speed and performance.
ASUS AI INTELLIGENCE
AI CACHE BOOST Supercharge your large language model (LLM) workflows with AI Cache Boost. Exclusive to ASUS AMD 800 and 600 series motherboards that use Ryzen™ 9000 Series CPUs, this BIOS setting optimizes CPU cache and memory pathways to deliver up to 29% faster local LLM performance with high-speed memory tuning.
AI NETWORKING II AI Networking II combines intelligent technologies to continuously optimize network performance, provide trustworthy and seamless connectivity, and unleash the full speed of WiFi 7.
PCIE 5.0 One of the onboard M.2 slots is geared for blistering 16 GB/s read and write speeds thanks to its PCIe 5.0 interface, while all the rest can deliver still-impressive 8 GB/s transfers.
Abundant Connectivity: USB 20Gbps Type-C® and USB 10Gbps Type-C ports, six 5Gbps USB-A ports, USB 10Gbps Type-C front-panel connector, PCIe pre-mounted I/O shield.
Immersive Audio: Realtek® ALC1220P codec with Savitech SV3H712 amplifier, along with Dolby Atmos®.
General
| Brand | ASUS ROG |
|---|---|
| Model | ROG STRIX B850-G GAMING WIFI |
| Chipset | AMD B850 |
| CPU Socket | AMD AM5; supports Ryzen 9000, 8000 and 7000 Series |
Performance
| Power Stages | 14+2+1, rated 80A per stage |
|---|---|
| Memory Support | 4 × DDR5 DIMM, up to 256 GB, DDR5-8000+ MT/s (OC) on Ryzen 9000 & 8000 |
| Memory Features | EXPO, AEMP, ECC and Non-ECC support |
| PCIe 5.0 M.2 Speed | 16 GB/s read and write (M.2_2 slot on Ryzen 9000 & 7000) |
| PCIe 4.0 M.2 Speed | 8 GB/s (M.2_1, M.2_3, M.2_4) |
| PCIe Slot | 1 × PCIe 5.0 x16 (Ryzen 9000 & 7000); PCIe 4.0 x8/x4 on Ryzen 8000 |
| RAID Support | AMD RAIDXpert2 (RAID 0/1/5/10 on Ryzen 9000) |
Networking
| WiFi Standard | WiFi 7 (802.11be), 2x2, 2.4/5/6 GHz, 160 MHz channels |
|---|---|
| WiFi 7 Throughput | Up to 2.9 Gbps |
| Bluetooth | v5.4 |
| Ethernet | 1 × Intel 2.5 Gb with ASUS LANGuard |
Ports & Power
| Rear USB (Total 10) | 1 × USB 20 Gbps (Type-C), 3 × USB 10 Gbps (2 Type-A, 1 Type-C), 4 × USB 5 Gbps (Type-A), 2 × USB 2.0 (Type-A) |
|---|---|
| Front USB Headers | 1 × USB 10 Gbps (Type-C), 1 × USB 5 Gbps header (supports 2 ports), 2 × USB 2.0 headers (support 4 ports) |
| Video Output | 1 × DisplayPort (8K @ 30 Hz), 1 × HDMI (4K @ 60 Hz) |
| Audio Output | 2 × analog 3.5 mm jack, 1 × Optical S/PDIF |
| Power Connectors | 1 × 24-pin ATX, 2 × 8-pin +12V CPU |
| Fan Headers | 1 × 4-pin CPU, 1 × 4-pin CPU OPT, 1 × 4-pin AIO Pump, 3 × 4-pin Chassis |
| Storage Connectors | 4 × M.2 (Key M), 2 × SATA 6 Gb/s |
Audio
| Audio Codec | Realtek ALC1220P, 7.1 Surround |
|---|---|
| Amplifier | Savitech SV3H712 |
| Audio SNR | 120 dB stereo playback, 113 dB recording (Line-in) |
| Audio Features | Impedance sense, multi-streaming, jack detection, Dolby Atmos, SupremeFX shielding |
Physical
| Form Factor | Micro-ATX |
|---|---|
| Dimensions | 9.6 × 9.6 inches (24.4 × 24.4 cm) |
| BIOS | 256 Mb Flash, UEFI AMI |
| RGB | Aura Sync; 3 × Addressable RGB Gen 2 headers |
| Included Accessories | 2 × SATA cables, WiFi Q-Antenna, cable ties, M.2 Q-Latch package, pre-mounted I/O shield |
Software & Features
| AI Features | AI Cache Boost (Ryzen 9000 only, up to 29% faster LLM inference), AI Networking II |
|---|---|
| BIOS Tools | BIOS FlashBack button, Clear CMOS button |
| Included Software | ROG CPU-Z, Armoury Crate, Aura Creator, Aura Sync, Fan Xpert 4, GameFirst, ASUS AI Advisor, DriverHub, AIDA64 Extreme (60-day trial), HWiNFO, Norton 360 for Gamers (60-day trial) |
Shipping
All our products are shipped from the United Kingdom within 24 to 48 hours of purchase. See our Shipping and Returns page for full details.
Returns
- Tech Syndicate offers a full money-back guarantee on all purchases made in our store. If you are not satisfied with your purchase, we will provide a full refund, no questions asked.
- Refunds are available within 45 days of delivery.
- After the 45-day period you are no longer eligible for a refund, so we encourage you to try the product within the first few weeks to make sure it fits your needs.