ASRock B850M Pro RS WiFi AM5 Micro ATX Motherboard – DDR5 up to 8000+ (OC), PCIe 5.0 x16, Wi-Fi 6E + BT 5.2, 2.5GbE LAN, 3x M.2 (1x PCIe Gen5), HDMI + DP | 90-MXBR70-A0UAYZ

Optimized VRM Design

The 8+2+1 power phase design features sturdy components and completely smooth power delivery to the CPU, offering enhanced performance for gamers. Dr.MOS is the integrated power stage solution optimized for synchronous buck-set down voltage applications — compared to traditional discrete MOSFETs, it intelligently delivers higher current for each phase, providing improved thermal results and superior performance. The 6-layer PCB provides stable signal traces and power shapes, delivering lower temperature and higher energy efficiency for memory overclocking.

DDR5 XMP & EXPO Support

Built with high-quality materials and the “built for stable and reliable” concept, this motherboard lets enthusiasts enjoy DDR5 memory overclocking up to 8000+ (OC) by enabling pre-tested Intel XMP and AMD EXPO profiles — overclocking made affordable, satisfying and absolutely no sweat.

PCIe Gen5 Blazing M.2 & Intelligent Cooling

The Blazing M.2 accommodates the latest PCI Express 5.0 standard, performing at twice the bandwidth with a breathtaking 128Gb/s transfer speed — ready to unleash future ultrafast SSDs — joined by two PCIe Gen4x4 Hyper M.2 slots. The optimized aluminum heatsink design manages thermal performance during heavy gaming and productivity workloads, and the M.2 bottom heatsink dissipates SSD heat efficiently through the motherboard PCB for maximum performance and stability.

Connectivity — Wi-Fi 6E & Dragon 2.5G LAN

Wi-Fi 6E extends to the whole new 6GHz spectrum band, providing more Wi-Fi capability with lower latency and 5G-equivalent service levels, while built-in Bluetooth connects peripherals with ease. The Dragon 2.5Gb/s LAN platform is built for maximum networking performance — up to 2.5X standard gigabit bandwidth — with smart auto-adjust bandwidth control and optimized presets for game, browser and streaming modes. The rear panel offers a USB 3.2 Gen2 Type-C and Type-A (10Gbps), two USB 3.2 Gen1 and four USB 2.0 ports, with front-panel USB headers including a Type-C connector. Graphics output options include HDMI (4K@120Hz) and DisplayPort 1.4, and 7.1-channel Nahimic Audio delivers an engaging listening experience.

Stylish Design & DIY Friendly

Polychrome RGB headers synchronize LED devices across certified accessories, with SignalRGB partnership unifying RGB devices with game-reactive effects. The reinforced steel slot supports PCIe 5.0 with extra anchor points and a stronger latch for heavy graphics cards. A BIOS Flashback button enables updates without a CPU, and the pre-installed I/O shield streamlines building. ASRock’s Auto Driver Installer pre-installs the LAN driver — connect to the internet and one click installs all drivers and software — while ASRock Claw Quickset simplifies deployment of OpenClaw and local AI models for one-click access to AI agents. Windows 10 and Windows 11 are both supported.

Key Features

• AMD Socket AM5 for Ryzen 9000 / 8000 / 7000 Series
• AMD B850 chipset
• 8+2+1 phase power design, Dr.MOS for VCore + SOC + MISC, 6-layer PCB
• 4x DDR5 DIMM, dual channel, up to 8000+ (OC), max 256GB, Intel XMP & AMD EXPO
• 1x PCIe 5.0 x16 (reinforced steel slot, 15μ gold contacts) + 1x PCIe 4.0 x4
• 1x Blazing M.2 PCIe Gen5x4 (128Gb/s) + 2x Hyper M.2 PCIe Gen4x4 (64Gb/s) + 4x SATA3, RAID 0/1/10
• M.2 bottom heatsink · aluminum VRM/PCH heatsinks
• Wi-Fi 6E 802.11axe (2.4/5/6GHz, 2×2, MU-MIMO) + Bluetooth 5.2
• Dragon RTL8125BG 2.5Gb/s LAN with smart bandwidth control
• USB 3.2 Gen2 Type-C + Type-A (10Gbps) rear, front USB-C 3.2 Gen1, 8x USB 2.0
• HDMI (4K@120Hz) + DisplayPort 1.4 (4K@120Hz) outputs
• 7.1 CH HD Audio (Realtek ALC897) with Nahimic Audio
• Polychrome RGB + SignalRGB · 1x RGB + 3x ARGB headers
• BIOS Flashback button · pre-installed I/O shield · Auto Driver Installer
• ASRock Claw Quickset — one-click OpenClaw and local AI model deployment
• Windows 10 / 11 64-bit

Spec Sheet

Perfect For

• Daily computing and gaming builds on Ryzen 9000 wanting PCIe Gen5 M.2 speed
• Users wanting Wi-Fi 6E and 2.5GbE networking with zero add-in cards
• Builders valuing stability, durability and streamlined style at a mainstream price
• AI-curious users deploying local AI models with ASRock Claw Quickset

What’s Included

• ASRock B850M Pro RS WiFi motherboard
• 2x ASRock WiFi 2.4/5/6GHz antennas
• 2x SATA data cables
• User manual

The evolution of the most popular PRO series — the ASRock B850M Pro RS WiFi pairs PCIe Gen5 graphics and storage, DDR5 to 8000+ (OC), Wi-Fi 6E and Dragon 2.5G LAN with a pre-installed I/O shield and one-click driver installation for effortless Ryzen 9000 builds.