The ASUS ROG Strix B850-I Gaming WiFi is a Mini-ITX motherboard designed for compact gaming PCs and high-performance small-form-factor systems. Built on the AMD B850 chipset with an AM5 socket, it supports compatible AMD Ryzen 9000, 8000, and 7000 Series desktop processors.
With DDR5 memory, high-speed M.2 storage, Wi-Fi 7, 2.5Gb Ethernet, and a range of USB connectivity options, this motherboard combines modern platform features in a compact 17 × 17 cm form factor.
Key Features
- AMD AM5 platform: Supports compatible Ryzen 9000, 8000, and 7000 Series desktop processors.
- DDR5 memory: Two DIMM slots support up to 128GB of memory, with overclocked speeds depending on the processor and memory configuration.
- High-speed storage: Two M.2 slots and two SATA 6Gb/s ports provide options for SSDs and additional storage drives.
- Next-generation connectivity: Integrated Wi-Fi 7, Bluetooth 5.4, and Intel 2.5Gb Ethernet support wired and wireless networking.
- Compact Mini-ITX design: A 17 × 17 cm motherboard layout suits compatible small-form-factor PC cases.
Processor and Memory Support
The AMD B850 chipset and AM5 socket provide a platform for compatible AMD Ryzen 9000, 8000, and 7000 Series desktop processors. The motherboard includes two DDR5 DIMM slots with dual-channel memory architecture and supports AMD EXPO and ASUS Enhanced Memory Profile (AEMP) technologies.
ASUS lists overclocked memory speeds of up to 8200+ MT/s with Ryzen 9000 Series processors, 9600+ MT/s with Ryzen 8000 Series processors, and 8000+ MT/s with Ryzen 7000 Series processors. Actual supported speeds depend on the processor, memory kit, BIOS, and system configuration.
Graphics and Expansion
The motherboard provides one PCIe x16 expansion slot with ASUS Q-Release Slim. With compatible Ryzen 9000 and 7000 Series processors, the slot supports PCIe 5.0; with supported Ryzen 8000 Series processors, it operates at PCIe 4.0. The installed processor determines the available interface and supported functionality.
Display connectivity includes an HDMI output and a USB Type-C port with DisplayPort Alt Mode support. Integrated graphics output depends on the capabilities of the installed processor.
Storage Options
Two M.2 sockets support M.2 2242, 2260, and 2280 storage devices. With compatible Ryzen 7000 and 9000 Series processors, both M.2 sockets support PCIe 5.0 x4 operation. With supported Ryzen 8000 Series processors, they operate at PCIe 4.0 x4, subject to processor-specific limitations.
Two SATA 6Gb/s connectors provide additional storage connectivity for compatible SATA drives.
Networking and Connectivity
Integrated Wi-Fi 7 supports compatible wireless networks across the 2.4GHz, 5GHz, and 6GHz bands, with supported channel widths and performance depending on the network environment and regional regulations. Bluetooth 5.4 provides connectivity for compatible wireless peripherals.
An Intel 2.5Gb Ethernet controller provides wired networking. Rear USB connectivity includes one USB 20Gbps Type-C port, five USB 10Gbps ports consisting of four Type-A and one Type-C, and two USB 2.0 Type-A ports. Internal headers support additional front-panel USB connectivity.
Cooling, Audio, and System Features
The ROG Strix B850-I Gaming WiFi includes a VRM heatsink and fan, M.2 and chipset heatsinks, an AIO pump header, and dedicated fan connections to support compatible cooling configurations.
ROG SupremeFX audio is powered by the ALC4080 codec and Savitech SV3H712 amplifier. Additional features include BIOS FlashBack, Clear CMOS, FlexKey, Aura Sync lighting support, and ASUS Q-Design installation features.
Specifications
| Brand | ASUS |
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| Part Number / MPN | ROG STRIX B850-I GAMING WIFI |
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| Product Type | Mini-ITX Desktop Motherboard |
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| Product Series | ROG Strix |
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| CPU Socket | AMD AM5 |
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| Chipset | AMD B850 |
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| Supported Processors | Compatible AMD Ryzen 9000, 8000, and 7000 Series desktop processors |
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| Memory Type | DDR5 |
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| Memory Slots | 2 × DIMM |
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| Maximum Memory Capacity | 128GB |
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| Memory Architecture | Dual channel |
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| Memory Overclocking | Up to 8200+ MT/s, 9600+ MT/s, or 8000+ MT/s depending on supported CPU series and configuration |
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| Expansion Slot | 1 × PCIe x16; PCIe 5.0 or PCIe 4.0 depending on CPU |
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| M.2 Slots | 2 × M.2 Key M, sizes 2242/2260/2280 |
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| M.2 Interface | PCIe 5.0 x4 with supported Ryzen 7000/9000 CPUs; PCIe 4.0 x4 with supported Ryzen 8000 CPUs |
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| SATA Ports | 2 × SATA 6Gb/s |
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| Wireless Networking | Wi-Fi 7 (802.11be), 2×2 |
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| Bluetooth | Bluetooth 5.4 |
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| Wired Networking | Intel 2.5Gb Ethernet |
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| Rear USB | 1 × USB 20Gbps Type-C, 5 × USB 10Gbps (4 Type-A and 1 Type-C), 2 × USB 2.0 Type-A |
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| Display Outputs | 1 × HDMI; 1 × USB Type-C with DisplayPort Alt Mode |
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| Audio Codec | ROG SupremeFX ALC4080 with Savitech SV3H712 amplifier |
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| Form Factor | Mini-ITX |
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| Dimensions | 17 × 17 cm (6.7 × 6.7 inches) |
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| Operating System | Windows 11 |
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Compatibility and Installation
Choose an AM5-compatible processor and DDR5 memory kit. Confirm processor support and the appropriate BIOS version before installation, especially when using a newer CPU. The case must support the Mini-ITX form factor and provide clearance for the selected CPU cooler, graphics card, power supply, and storage devices.
Memory speeds, PCIe generations, display functionality, and some connectivity features depend on the installed processor and system configuration. Check the motherboard manual and CPU support list before assembling the system.
Frequently Asked Questions
Which processors are compatible with this motherboard?
The motherboard supports compatible AMD Ryzen 9000, 8000, and 7000 Series desktop processors using the AM5 socket. Consult the official CPU support list for exact model and BIOS compatibility.
How much memory can it support?
It has two DDR5 DIMM slots and supports up to 128GB of memory. Maximum operating speed depends on the CPU, memory kit, and system configuration.
Does the motherboard support PCIe 5.0 SSDs?
Yes. Both M.2 sockets support PCIe 5.0 x4 with compatible Ryzen 7000 and 9000 Series processors. Supported Ryzen 8000 Series processors use PCIe 4.0 x4 for these sockets.
Does it include wireless networking?
Yes. It includes Wi-Fi 7 and Bluetooth 5.4, as well as Intel 2.5Gb Ethernet for wired networking.
Will it fit in a compact PC case?
The motherboard uses the Mini-ITX form factor and measures 17 × 17 cm. Check the case specifications and component clearances before purchasing.
DC Supplies Product Note
The ASUS ROG Strix B850-I Gaming WiFi combines an AM5 processor platform, DDR5 memory support, dual M.2 storage, Wi-Fi 7, and 2.5Gb Ethernet in a Mini-ITX layout. For best compatibility, verify the CPU support list, memory specifications, and case clearances before building your system.
