Name: Asrock B850M Pro RS WiFi AMD B850 Socket AM5 micro ATX
Brand: ASRock
SKU: 90mxbr70a0uayz
Availability: InStock

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Description

Supports AMD Socket AM5 Ryzen™ 9000, 8000 and 7000 Series Processors. 8+2+1 Phase Power Design, Dr.MOS for VCore+SOC+MISC. 4 x DDR5 DIMMs, Supports Dual Channel, up to 8000+ (OC). 1 PCIe 5.0 x16, 1 PCIe 4.0 x4. Graphics Output Options: 1 HDMI, 1 DisplayPort. Realtek ALC897 7.1 CH HD Audio Codec, Nahimic Audio. 1 Blazing M.2 (PCIe Gen5x4), 2 Hyper M.2 (PCIe Gen4x4), 4 SATA3. 1 USB 3.2 Gen2 Type-C (Rear), 1 USB 3.2 Gen2 Type-A (Rear), 1 USB 3.2 Gen1 Type-C (Front), 6 USB 3.2 Gen1 (2 Rear, 4 Front), 8 USB 2.0 (4 Rear, 4 Front). Realtek 2.5G LAN. 802.11axe WiFi 6E +Bluetooth. Optimized for stability, durability, and efficiency. It combines reliable performance, user-friendly features and streamlined style for daily computing tasks.. Optimized VRM Design. 8+2+1 Power Phase Design. Featuring sturdy components and completely smooth power delivery to the CPU, offering enhanced performance for gamers.. Dr. MOS. Dr.MOS is the integrated power stage solution which is optimized for synchronous buck-set down voltage applications! Compared to traditional discrete MOSFETs, it intelligently delivers higher current for each phase, thus providing improved thermal result and superior performance.. Hi-Density Power Connector. CPU overclocking requires higher current. ASRock Hi-Density Power Connectors are designed to withstand higher currents compared to traditional CPU and ATX power connectors, providing a more stable system and reducing the risk of fire during heavy overclocking.. Hi-Density Power Connector. CPU overclocking requires higher current. ASRock Hi-Density Power Connectors are designed to withstand higher currents compared to traditional CPU and ATX power connectors, providing a more stable system and reducing the risk of fire during heavy overclocking.. 6 Layer PCB. The 6 Layer PCB provides stable signal traces and power shapes delivering lower temperature and higher energy efficiency for memory overclocking! Thus, it's able to support the latest memory modules with most extreme memory performance!. DDR5 XMP & EXPO Support. Derived from the “built for stable and reliable” designing concept, ASRock does not compromise on any details. This motherboard is built with high quality materials, enthusiasts are able to enjoy the boost of DDR5 memory overclocking performance by enabling the pre-tested profiles. Make sure the memory modules are Intel® XMP/AMD EXPO™ capable and overclocking can be made so affordable, satisfying and absolutely no sweat at all.. High Speed M.2 Solution. PCIe Gen5 Blazing M.2. The Blazing M.2 accommodates the latest PCI Express 5.0 standard to perform twice the bandwidth compared to previous generation, with a breathtaking 128Gb/s transfer speed, it is ready to unleash the full potential of future ultrafast SSDs.. Hyper M.2 Gen4 x4. Supports PCI Express 4.0 M.2 SSDs, it is capable of perform twice the speed compared to previous 3rd generation, giving a lightning fast data transferring experience.. DIY Friendly Design. The M.2 bottom heatsink is able to dissipate heat of the M.2 SSD efficiently through the motherboard PCB, maximize performance while maintaining system stability.. Intelligent Cooling Design. Aluminum Heatsink. The first thing that catches the eye is the optimized Aluminum Heatsink Design. Heatsinks are crucial for efficient heat dissipation, especially during heavy workloads like gaming or productivity tasks. Motherboard that built with heatsinks can effectively manage thermal performance, hence ensure system stability and durability effortlessly.. PWM/DC Fan Support. ASRock fan headers automatically detect whether fans are running in DC or PWM mode, allowing users to fine-tune the fan curve and achieve quieter operation.. Fan-Tastic Tuning. ASRock A-Tuning Fan-Tastic Tuning function enables users to auto-detect the minimum duty of each fan with a single click. Users can also easily adjust the fan curve via the visualized UI interface, meeting their system's cooling performance and noise reduction requirements.. Connectivity. Wi-Fi 6E 802.11axe. WiFi 6E technology has extended to the whole new 6GHz spectrum band, providing more WiFi capability and giving an even better and faster internet traffic. In addition to deliver higher speeds, the WiFi 6E also enhances the lower latency and supports service levels that are equivalent to 5G networks.. Dragon 2.5 Gb/s LAN. The intelligent 2.5Gb/s LAN platform is built for maximum networking performance for the demanding requirements of home networking, content creators, online gamers and high-quality streaming media. Boost networking performance up to 2.5X the bandwidth compared to the standard gigabit Ethernet, you’ll enjoy the faster and uncompromised connectivity experience for gaming, file transfers and backups.. Nahimic Audio. Whether you are using headphones, a headset, external or internal speakers, via USB, Wi-Fi, analog output or even HDMI, Nahimic Audio offers you the most engaging listening experience, vibrant and rich with detai

Full specifications

Marque	ASRock
Référence fabricant	90mxbr70a0uayz
EAN	4711581490352

Asrock B850M Pro RS WiFi AMD B850 Socket AM5 micro ATX: complete technical analysis for 2026

Choosing the Asrock B850M Pro RS WiFi AMD B850 Socket AM5 micro ATX means opting for the expertise of ASRock in the Informatique category. Its price starting from £126.44 makes it a serious option on the market. Buyers interested in this brand also look at the Asrock X870E Taichi AMD X870E Socket AM5 Extended ATX to complete their comparison. On Compiral, all displayed prices are updated regularly and retailers are selected for their reliability and quality of customer service.

Who is this Informatique for?

The Asrock B850M Pro RS WiFi AMD B850 Socket AM5 micro ATX benefits from the expertise of ASRock in this category. Its design meets current market standards and satisfies even the most demanding users in their everyday activities. The brand's reliability translates into positive feedback from regular buyers, who particularly appreciate the consistency between the promises of the product sheet and the real-world experience. For the Informatique category, this is an option we recommend without hesitation.

For intensive or occasional use

The Asrock B850M Pro RS WiFi AMD B850 Socket AM5 micro ATX adapts to different levels of use in the Informatique category. Whether you use it intensively every day or more occasionally, this ASRock product offers appreciated versatility. Regular users value its reliability over time, while occasional users appreciate how easy it is to pick up without any special training. For even more demanding use, also check the Asrock X870E Taichi AMD X870E Socket AM5 Extended ATX.

Against the competition

In the Informatique market, the Asrock B850M Pro RS WiFi AMD B850 Socket AM5 micro ATX is well positioned thanks to its price from £126.44 and the strength of ASRock. Our comparison tool lets you verify in real time whether this positioning still holds against other available offers.

Market price ranges in 2026

Range	Indicative price	For whom	What you get
Entry-level	Under 3210 £	Tight budget, occasional use	Essential features, reliable for beginners
Mid-range	3210 £ to 7490 £	Regular daily use	Good value for money, solid performance
High-end	Over 7490 £	Demanding users	The best of the category, all advanced features

The best times to buy the Asrock B850M Pro RS WiFi AMD B850 Socket AM5 micro ATX at a lower price are Black Friday in November, the January sales and the summer sales in July. Our price history lets you judge whether the current price is a genuine bargain or whether it is worth waiting a few weeks. Outside these periods, flash promotions remain frequent among Compiral's partner retailers.

Frequently asked questions about Asrock B850M Pro RS WiFi AMD B850 Socket AM5 micro ATX

How does the Asrock B850M Pro RS WiFi AMD B850 Socket AM5 micro ATX compare to competitors in the Informatique category?

In the Informatique category, the Asrock B850M Pro RS WiFi AMD B850 Socket AM5 micro ATX occupies a specific market segment. Compared to other available models, it stands out mainly through the balance between its features and its price. To compare objectively, consult the detailed spec sheet on this page and compare specifications with other similar products listed on our comparison tool.

Is the Asrock B850M Pro RS WiFi AMD B850 Socket AM5 micro ATX suitable for beginners?

Yes, the Asrock B850M Pro RS WiFi AMD B850 Socket AM5 micro ATX is generally appreciated by both beginners and regular users of the Informatique category. It is quick to set up and ASRock usually provides clear documentation. If you are new to this product category, consult the spec sheet on this page to identify the key criteria to check before making your choice.

Is there a refurbished version of the Asrock B850M Pro RS WiFi AMD B850 Socket AM5 micro ATX?

Refurbished versions of the Asrock B850M Pro RS WiFi AMD B850 Socket AM5 micro ATX may be available from certain Compiral partner retailers. These refurbished products allow you to save between 20% and 40% compared to the new price while still benefiting from a warranty. Check availability in our offers table and review the warranty conditions offered by the retailer.

When do prices for the Asrock B850M Pro RS WiFi AMD B850 Socket AM5 micro ATX drop during the year?

Prices for the Asrock B850M Pro RS WiFi AMD B850 Socket AM5 micro ATX typically drop during Black Friday (November), the January sales and the summer sales (July). Promotional deals are also common around Cyber Monday and the holiday season. Our price history lets you spot trends and assess whether a price drop is likely soon in the Informatique category.

Is delivery free for the Asrock B850M Pro RS WiFi AMD B850 Socket AM5 micro ATX at all retailers?

Free delivery is not guaranteed for the Asrock B850M Pro RS WiFi AMD B850 Socket AM5 micro ATX at every retailer. Some include it in their price, others charge separately. On Compiral, use the free delivery filter to display only offers with free postage. The total price shown in our table always includes delivery costs for a true cost comparison.