ASUS Prime B550M-A/CSM AMD B550 Socket AM4 micro ATX

ASUS Prime B550M-A/CSM AMD B550 Socket AM4 micro ATX

Brand Asus

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£111.21

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Listed since 10 April 2026

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Description

AMD B550 (Ryzen AM4) micro ATX motherboard with dual M.2, PCIe 4.0, 1 Gb Ethernet, HDMI/D-Sub/DVI, SATA 6 Gbps, USB 3.2 Gen 2 Type-A, and Aura Sync RGB headers supportASUS Prime series is expertly engineered to unleash the full potential of 3rd Generation AMD Ryzen platform. Boasting a robust power design, comprehensive cooling solutions and intelligent tuning options, Prime B550 series motherboards provide daily users and DIY PC builders a range of performance tuning options via intuitive software and firmware features.ASUS Corporate Stable ModelASUS Corporate Stable Model (CSM) is a commercial program designed to provide stable and reliable motherboards. Offering up to 36-month product lifecycle support and 6-month end-of-life notice to allow sufficient lead times for your organization to get ready for product transitions. Each purchase of an ASUS CSM motherboard comes with ASUS Control Center Express - server-grade IT management software.* Lifecycle support for consumer chipsets (eg. Q370, H370, B360,H270,B250) is set at 15 months. Program offerings may vary by region. Please consult your local sales representative for more information.ASUS Control Center ExpressASUS Control Center Express is an integrated IT monitoring and management software designed to deploy faster, simplify IT operations and improve productivity with comprehensive control and user-friendly functions. ASUS Control Center Express is compatible with over 100 ASUS motherboards to provide a high-quality, TCO-optimized solution for your business needs.Optimize IT endpoint managementDesigned to assist IT staff in monitoring and controlling devices within their corporate networks, and facilitate inventory checking in multiple locations remotelyAutomate IT maintenanceAllows IT staff to schedule automatic updates of the latest BIOS, software and utilities to specific or all devices at off-peak times, enhancing system stability and IT operational flexibilitySecurely manage all of endpointsSecurely manage endpoint configuration, portable storage access and PC software applications by enabling them to create grouping rules on individual devicesTune It Your WayComprehensive controls form the foundation of the ASUS Prime series. The Prime B550 motherboard packs flexible tools to tune every aspect of your system, enabling you to tweak performance settings to perfectly match the way you work – maximizing your productivCool to the CorePrime B550 series is engineered with multiple onboard heatsinks and an array of hybrid fan headers to ensure your rig stays cool and stable under intense workloads.VRM Heatsink and Thermal PadsA VRM heatsink with underneath thermal pad improves heat transfer from the MOSFETs and chokes for better cooling performance.Build on a Solid FoundationPrime B550 motherboard provides all the fundamentals to boost daily productivity, so your system will be ready for action with stable power, intuitive cooling and flexible transfer options.PCIe 4.0 M.2(up to 64 Gbps)Achieve speed with onboard M.2PCIe 4.0 M.2 Slot supports up to 22110 and provide NVMe SSD RAID support for an incredible performance boost. Create a RAID configuration with up to PCIe 4.0 storage device to enjoy the fastest data-transfer speeds on the 3rd Generation AMD Ryzen platform.Little Things Make a Big DifferencePrime B550 series adds the nuanced details that improve every experience, from exclusive codecs that provide pristine audio quality to intuitive RGB lighting controls that let you customize your system to create a uniquely personal look.Outstanding AudioCombined onboard features deliver elevated audioIntelligent design and premium hardware create audio quality unlike anything you've ever experienced.Audio ShieldingSeparates analog/digital signal domains, significantly reducing multi-lateral interference.Separate Layer for Left and Right TracksEnsures minimal crosstalk between audio paths.Premium Japanese CapacitorsPremium parts provide an immersive sound signature, with exceptional fidelity.

Specifications

Processor manufacturer AMD
Processor socket Socket AM4
Compatible processor series AMD Ryzen 3000 Series
Supported memory types DDR4-SDRAM
Number of memory slots 4
Memory slots type DIMM
Supported memory clock speeds 2133,2400,2666,2800,3000,3200,3333,3466,3600,3733,3866,4000,4133,4266,4400,4600 MHz
Maximum internal memory 128 GB
Unbuffered memory Yes
Supported storage drive interfaces M.2, SATA III
On-board graphics card No
USB 2.0 connectors 2
USB 3.2 Gen 1 (3.1 Gen 1) connectors 1
Number of SATA III connectors 4
Front panel audio connector Yes
ATX Power connector (24-pin) Yes
CPU fan connector Yes
Number of chassis fan connectors 2
EPS power connector (8-pin) Yes
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity 4
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity 2
Ethernet LAN (RJ-45) ports 1
PS/2 ports quantity 1
VGA (D-Sub) ports quantity 1
HDMI ports quantity 1
DVI-D ports quantity 1
Headphone outputs 1
Microphone in Yes
Ethernet LAN Yes
Ethernet interface type Gigabit Ethernet
LAN controller Realtek RTL8111H
Wi-Fi No
Motherboard chipset AMD B550
Audio chip Realtek ALC887
Audio output channels 7.1 channels
Product colour Black, Silver
Component for PC
Motherboard form factor micro ATX
Motherboard chipset family AMD
Windows operating systems supported Windows 10 x64
PCI Express x1 (Gen 3.x) slots 2
PCI Express x16 (Gen 4.x) slots 1
BIOS type UEFI AMI
BIOS memory size 256 Mbit
Clear CMOS jumper Yes
Harmonized System (HS) code 84733020
Width 244 mm
Depth 244 mm
Height 51 mm
Weight 845 g

Full specifications

Marque Asus
Référence fabricant 90mb14i0m0eayc
EAN 4718017755535

Overview of the ASUS Prime B550M-A/CSM AMD B550 Socket AM4 micro ATX

In the Informatique category, the ASUS Prime B550M-A/CSM AMD B550 Socket AM4 micro ATX by Asus stands out for its positioning in 2026. Compiral lists all available offers to help you buy at the best price. Our comparison tool takes delivery costs into account to calculate the true total price of each offer. Filter by stock availability, free delivery, or sort by ascending price to find the best deal right now.

What makes the ASUS Prime B550M-A/CSM AMD B550 Socket AM4 micro ATX stand out in 2026

This product stands out for the build quality that is characteristic of the Asus brand. Users particularly appreciate its reliability in daily use and how easy it is to get started right from the first use. The design, intended for regular use, ensures satisfying durability, and the balance between the features offered and the asking price is well received by buyers. Asus has a strong reputation in the Informatique category, which makes it easy to access after-sales service and the manufacturer warranty when needed. You can also compare with the ASUS GT1030-SL-2G-BRK NVIDIA GeForce GT 1030 2 GB GDDR5 to refine your choice.

Performance and key features

In the Informatique category, buyers pay close attention to declared performance and build quality. The ASUS Prime B550M-A/CSM AMD B550 Socket AM4 micro ATX meets these expectations with technical specifications that reflect Asus's positioning on this segment. The key features, available in the spec sheet on this page, allow you to verify this product matches your needs before finalising your purchase. Also compare with the ASUS GT1030-SL-2G-BRK NVIDIA GeForce GT 1030 2 GB GDDR5 from the same brand to refine your decision.

Design and ease of use

The ASUS Prime B550M-A/CSM AMD B550 Socket AM4 micro ATX is generally described as intuitive by users in the Informatique category. Asus designed this product to be accessible from the first use, whether you are a beginner or an experienced user in this range.

Market price ranges in 2026

RangeIndicative price
Entry-levelUnder 384300 £
Mid-range384300 £ to 896710 £
High-endOver 896710 £

To find the ASUS Prime B550M-A/CSM AMD B550 Socket AM4 micro ATX at the best price today, compare all available offers on Compiral. Our comparison tool updates prices several times a day to ensure you get the lowest rate from our partner retailers. Remember to activate the free delivery filter to reduce the total cost of your purchase. Also check the estimated delivery time at each retailer, which can vary considerably from one shop to another.

Frequently asked questions about ASUS Prime B550M-A/CSM AMD B550 Socket AM4 micro ATX

Is the ASUS Prime B550M-A/CSM AMD B550 Socket AM4 micro ATX worth its price in 2026?

In 2026, the ASUS Prime B550M-A/CSM AMD B550 Socket AM4 micro ATX is listed from £116.16 at our partner retailers. This price is consistent with the positioning of Asus 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.

What warranty does the ASUS Prime B550M-A/CSM AMD B550 Socket AM4 micro ATX come with?

The ASUS Prime B550M-A/CSM AMD B550 Socket AM4 micro ATX generally comes with a manufacturer warranty of 1 to 2 years depending on the retailer. In addition to the commercial warranty from Asus, statutory consumer rights apply to all purchases. Check the warranty conditions directly on the retailer's page before finalising your order.

Is the ASUS Prime B550M-A/CSM AMD B550 Socket AM4 micro ATX in stock?

Stock availability for the ASUS Prime B550M-A/CSM AMD B550 Socket AM4 micro ATX is updated in real time on Compiral. Retailers showing "In stock" can usually deliver quickly, often within 2 to 5 working days. If the product is temporarily out of stock at one retailer, check the other offers in our table. Check back regularly as stock levels change frequently in the Informatique category.

Where can I buy the ASUS Prime B550M-A/CSM AMD B550 Socket AM4 micro ATX at the best price?

To buy the ASUS Prime B550M-A/CSM AMD B550 Socket AM4 micro ATX at the best price, compare all available offers in our table at the top of this page. The 6 offers listed include delivery costs to give you the true total cost. Sort by ascending price and filter by free delivery to quickly identify the best deal among our verified partner retailers.

How does the ASUS Prime B550M-A/CSM AMD B550 Socket AM4 micro ATX compare to competitors in the Informatique category?

In the Informatique category, the ASUS Prime B550M-A/CSM AMD B550 Socket AM4 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.

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