ASUS ROG Strix B860-I Gaming WiFi Mini-ITX Motherboard Intel B860 LGA1851 DDR5 Wi-Fi 7

Overview

The ASUS ROG Strix B860-I Gaming WiFi is a Mini-ITX motherboard designed for compact desktop systems using Intel Core Ultra processors (Series 2). Built around the Intel B860 chipset and LGA1851 CPU socket, it combines DDR5 memory support, PCIe 5.0 expansion, high-speed M.2 storage, Wi-Fi 7, and Thunderbolt 4 connectivity in a small-form-factor platform.

Part of the Republic of Gamers (ROG) Strix series, this motherboard incorporates a multi-stage power delivery design, dedicated heatsinks, SupremeFX audio, and ASUS Q-Design installation features. Its connectivity options make it suitable for compact gaming PCs, performance-focused desktop builds, and workstation systems requiring modern processor and peripheral interfaces.

Processor and Platform Compatibility

The motherboard uses the Intel B860 chipset with an LGA1851 socket and supports Intel Core Ultra processors from Series 2. Processor selection should be checked against the official ASUS CPU support list and the installed BIOS version before assembly.

Its 10+1+2+1 power-stage configuration uses stages rated for up to 80A per stage. The board includes an 8-pin CPU power connector and a 24-pin main motherboard power connector.

Memory Support

Two DDR5 DIMM slots provide dual-channel memory operation, with a maximum supported capacity of 128GB. ASUS specifies memory speeds up to 9066+ MT/s through overclocking, depending on the processor, memory modules, and system configuration.

Supported memory features include Intel Extreme Memory Profile (XMP), ASUS Enhanced Memory Profile III (AEMP III), and DIMM Fit. Actual operating speed depends on memory compatibility and the selected configuration.

Expansion and Storage

The motherboard provides one PCI Express 5.0 x16 expansion slot connected to supported Intel Core Ultra processors. This slot accommodates a compatible discrete graphics card or another supported PCIe expansion device.

Two M.2 sockets support NVMe storage devices. The primary M.2 socket supports PCIe 5.0 x4, while the secondary socket supports PCIe 4.0 x4. Four SATA 6Gb/s ports provide additional connectivity for compatible SATA storage devices.

Intel Rapid Storage Technology supports SATA RAID 0, 1, 5, and 10 configurations. Confirm the requirements of the selected drives and RAID configuration before deployment.

Networking and Wireless Connectivity

Integrated Wi-Fi 7 provides wireless networking across supported 2.4GHz, 5GHz, and 6GHz bands. The wireless implementation supports 160MHz channel bandwidth and advertises transfer rates of up to 2.9Gbps under supported conditions. Bluetooth 5.4 provides connectivity for compatible wireless peripherals.

For wired networking, the motherboard includes Intel 2.5Gb Ethernet and ASUS LANGuard. Actual network performance depends on the connected network equipment, cabling, wireless environment, and service capabilities.

USB, Thunderbolt and Display Connectivity

The rear panel includes one Thunderbolt 4 USB Type-C port, one USB Type-C port supporting USB 20Gbps, one USB Type-A port supporting USB 10Gbps, three USB Type-A ports supporting USB 5Gbps, and two USB 2.0 Type-A ports.

Internal headers provide a front-panel USB Type-C connection supporting USB 10Gbps, two additional USB 5Gbps ports through a suitable header connection, and two additional USB 2.0 ports.

Display connections include one DisplayPort 1.4 output, one HDMI 2.1 output, and display output through the Thunderbolt 4 port. Motherboard video outputs require a compatible processor with integrated graphics. Discrete graphics card outputs operate independently of these motherboard display connections.

Audio and Cooling Features

The integrated Realtek ALC1220P audio codec supports multichannel high-definition audio, with a Savitech SV3H712 amplifier and ASUS SupremeFX shielding technology. The rear panel also includes optical S/PDIF output for compatible digital audio equipment.

Cooling connections include a CPU fan header, an AIO pump header, and one chassis fan header. The motherboard also features a VRM heatsink, M.2 heatsinks, and two Addressable Gen 2 RGB headers for supported lighting devices.

Key Features

• Compact Mini-ITX platform: LGA1851 socket and Intel B860 chipset for supported Intel Core Ultra Series 2 processors.
• High-speed DDR5 memory: Two DIMM slots, up to 128GB capacity, and memory overclocking support up to 9066+ MT/s.
• PCIe 5.0 expansion and storage: One PCIe 5.0 x16 slot and one PCIe 5.0 x4 M.2 socket, complemented by a second PCIe 4.0 x4 M.2 socket.
• Modern network connectivity: Wi-Fi 7, Bluetooth 5.4, and Intel 2.5Gb Ethernet.
• High-speed peripheral connections: Thunderbolt 4, USB Type-C up to 20Gbps, and multiple USB Type-A ports.

Applications

• Compact gaming desktops: Mini-ITX systems using a compatible Intel Core Ultra processor and discrete graphics card.
• Small-form-factor workstations: Compact computers for supported productivity, development, and content-creation applications.
• High-speed storage systems: Desktop builds combining NVMe M.2 drives with additional SATA storage.
• Modern connected PCs: Systems requiring integrated Wi-Fi 7, Bluetooth, multi-gigabit Ethernet, and Thunderbolt connectivity.

DC Supplies Product Note

Check CPU cooling and chassis fan connectivity before finalizing a compact build. This Mini-ITX motherboard provides one CPU fan header, one AIO pump header, and one chassis fan header. Systems requiring several case fans may need a compatible fan hub or another supported fan-control solution. Also verify processor support, DDR5 memory compatibility, and the available PCIe and M.2 clearance in the selected chassis.

Specifications

Frequently Asked Questions

1. Which processors are compatible with this motherboard?

The motherboard supports Intel Core Ultra processors (Series 2) using the LGA1851 socket. Check ASUS's official CPU support list and BIOS requirements to confirm compatibility with a specific processor.

2. Does this motherboard support DDR4 memory?

No. It uses DDR5 memory modules. DDR4 modules are not compatible with its memory slots.

3. Can I install a PCIe 5.0 NVMe SSD?

Yes. The primary M.2 socket supports PCIe 5.0 x4 storage devices in the supported 2260 and 2280 sizes. The second M.2 socket supports PCIe 4.0 x4 devices in 2242, 2260, and 2280 sizes.

4. Does the motherboard include Wi-Fi and Bluetooth?

Yes. It integrates Wi-Fi 7 wireless networking and Bluetooth 5.4. Wi-Fi 7 functionality depends on compatible operating systems, drivers, wireless equipment, and regional spectrum regulations.

5. Can the motherboard output video without a graphics card?

Its DisplayPort, HDMI, and Thunderbolt 4 display capabilities require a compatible processor with integrated graphics. If the installed processor does not provide supported integrated graphics, a discrete graphics card is required for display output.

6. What should I check before installing this motherboard in a compact PC?

Confirm that the chassis supports the Mini-ITX form factor, the CPU cooler fits the case, the processor is supported, and the power supply has the required motherboard and CPU connections. Also check memory compatibility, graphics card clearance, storage installation requirements, and the available fan headers.

Manufacturer Reference

For the latest CPU support information, BIOS updates, memory compatibility details, and technical documentation, consult the official