Name: Asrock B850M Pro-A AMD B850 Socket AM5 micro ATX
Brand: ASRock
SKU: 90mxbr80a0uayz
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. 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. Supports BIOS Flashback. 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.. Power Connector. 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.. Cooling. 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. 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.. Stylish Design. POLYCHROME RGB. This motherboard features onboard RGB headers and addressable RGB headers that allow motherboard to be connected to compatible LED devices such as strip, CPU fans, coolers, chassis and so on. Users may also synchronize RGB LED devices across the Polychrome RGB Sync-certified accessories to create their own unique lighting effects.. SignalRGB. SignalRGB unifies your RGB devices, offering seamless customization, game-reactive effects, macro automation, and system monitoring. The official partnership empowers ASRock motherboards with advanced lighting control, enhances compatibility with a diverse range of RGB devices, and provides greater customization flexibility.. DIY Friendly. Dual Graphics Outputs. Complete with two types of most used connectors! Packed with a HDMI + DisplayPort combo, you have more graphics output options now.. Reinforced Steel Slot [PCIe 5.0 Version]. The reinforced steel slot is capable of supporting PCI Express 5.0 standard. The various benefits inc

Full specifications

Marque	ASRock
Référence fabricant	90mxbr80a0uayz
EAN	4711581490390

The Asrock B850M Pro-A AMD B850 Socket AM5 micro ATX in its market context in 2026

With the Asrock B850M Pro-A AMD B850 Socket AM5 micro ATX, ASRock offers a solution suited to everyday needs in 2026. Available from 3 retailers on Compiral, this product benefits from real-time price comparison. Each offer is verified and updated several times a day to ensure you have the freshest information. Our platform calculates the total price including delivery costs, so you can identify the true best offer among all listed retailers.

ASRock: what this model offers

What buyers remember about the Asrock B850M Pro-A AMD B850 Socket AM5 micro ATX: consistent quality, intuitive use and a price that stays within market norms for this level of performance. The positioning of ASRock on the Informatique segment ensures access to spare parts and a structured after-sales service, which matters greatly in the long run. A solid choice in 2026, whether for a new purchase or to replace a failing device. Also discover the Asrock B850 Steel Legend WiFi AMD B850 Socket AM5 ATX from the same brand for a second level of comparison.

The strengths that really make a difference

What truly differentiates the Asrock B850M Pro-A AMD B850 Socket AM5 micro ATX from other products in the Informatique category comes down to a few concrete points: the build quality typical of ASRock, its availability from many retailers and accessible after-sales support. These criteria, often decisive for buyers, favour this model over alternatives on the market in 2026. Compare with the Asrock X870E Taichi AMD X870E Socket AM5 Extended ATX if you wish to explore other models from the brand.

What you need to know before buying

Before buying the Asrock B850M Pro-A AMD B850 Socket AM5 micro ATX, check the following points: stock availability at your chosen retailer, the returns policy, warranty period and delivery charges. These details are accessible from our offers table at the top of this page. ASRock generally offers a well-structured after-sales network for the Informatique category.

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

Comparing prices before buying the Asrock B850M Pro-A AMD B850 Socket AM5 micro ATX can save you between £10 and £40 depending on the retailer and the time of year. Use Compiral to never overpay for your online purchases. The 3 offers listed on this page all come from verified retailers with sales conditions compliant with consumer protection law.

Frequently asked questions about Asrock B850M Pro-A AMD B850 Socket AM5 micro ATX

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

Refurbished versions of the Asrock B850M Pro-A 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-A AMD B850 Socket AM5 micro ATX drop during the year?

Prices for the Asrock B850M Pro-A 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-A AMD B850 Socket AM5 micro ATX at all retailers?

Free delivery is not guaranteed for the Asrock B850M Pro-A 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.

How do I return the Asrock B850M Pro-A AMD B850 Socket AM5 micro ATX if I am not satisfied?

You have a 14-day right of withdrawal for any online purchase, applicable to the Asrock B850M Pro-A AMD B850 Socket AM5 micro ATX regardless of the retailer. Precise return conditions vary by retailer: check their returns policy before buying. Statutory consumer rights protect you in the event of a defect discovered after delivery.

Is the Asrock B850M Pro-A AMD B850 Socket AM5 micro ATX worth its price in 2026?

In 2026, the Asrock B850M Pro-A AMD B850 Socket AM5 micro ATX is listed from £116.44 at our partner retailers. This price is consistent with the positioning of ASRock in the Informatique category. To judge whether this price is currently attractive, check the price history on our product page. Also compare the total price including delivery to avoid any surprises at checkout.