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Description

PRO B840-P WIFIPRO B840-P WIFI offers a simple design with a harmonious silver color scheme that perfectly matches both white and black PC builds. It is engineered with many exclusive features of MSI, a true Wi-Fi 7 with EZ Antenna, 2.5G LAN, and PCIe 4.0 M.2 with EZ M.2 Shield Frozr II, ready for the AMD Ryzen™ 9000 series processors.BUSINESS ELEGANCEThe PRO Series is tailored to professionals from all walks of life. The lineup features impressive performance and high quality, while aiming to provide users incredible experience. Users who care about productivity and efficiency can definitely count on the MSI PRO Series to assist you with multitasking and increasing efficiency.MSI motherboards are designed with advanced hardware and technology, well-supporting the demanding computing usage of gaming and AI. Moreover, we also introduce AI to MSI Center and BIOS, making everything more effortless than before.DIRECT 7+2+1 POWER DESIGNUnleash and sustain the maximum performance with a VRM design built with a total of 7+2+1 digital power phases. With an 8-pin power connector, PRO B840-P WIFI is ready for the challenge of heavy-loading tasks.Extended HeatsinkExtended Heatsink enlarges the surface of heat dissipation and maintain the performance at heavy loads.M.2 Shield FrozrStrengthened M.2 thermal solution helps keep M.2 SSD safe and ensures incredible performance.7W/mK Thermal Pad & Additional Choke PadHigh-quality 7W/mK MOSFET thermal pads and additional choke thermal pads ensure stable performance when all cores are runnging at high speed.Enlarged Chipset HeatsinkThe enlarged heatsink is designed to reduce dust and noise and capable of maintaining high efficiency of heat dissipation.HIGH-BANDWIDTH AND LOW-LATENCY NETWORKMSI's premium network solution provides incredible data transfer speed for demanding users.BUILD FOR THE MOST ADVANCED PC FOR GAMING AND CREATINGWhen only the fastest will do, an AMD X800-series motherboard delivers. With USB 4.0 onboard along with robust overclocking1 capabilities, featuring faster dual-channel DDR5 memory support, AMD EXPO™ technology and PCIe® 5.0 support for both graphics and NVMe, you can play the most demanding games and deliver your biggest projects with the revolutionary performance of an AMD X800-series motherboard and AMD Ryzen™ 9000, 8000, and 7000 Series processors.

Specifications

Processor manufacturer	AMD
Processor socket	Socket AM5
Compatible processor series	AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series
Supported processor sockets	Socket AM5
Maximum internal memory supported by processor	256 GB
Supported memory types	DDR5-SDRAM
Number of memory slots	4
Memory slots type	DIMM
Memory channels	Dual-channel
ECC сompatibility	Non-ECC
Supported memory clock speeds	4800,5600,8000 MHz
Supported memory clock speed (max)	8000 MHz
Maximum internal memory	256 GB
Supported storage drive types	HDD & SSD
Supported storage drive interfaces	M.2, Micro SATA III
Number of HDDs supported	4
Number of storage drives supported	6
RAID support	Yes
RAID levels	0, 1, 10
On-board graphics card	No
USB 2.0 connectors	4
USB 3.2 Gen 1 (3.1 Gen 1) connectors	2
USB 3.2 Gen 2 (3.1 Gen 2) connectors	1
Number of SATA III connectors	4
Total number of SATA connectors	4
Number of CPU fan connectors	1
Number of chassis fan connectors	5
Number of water pump connectors	1
RGB LED pin header	Yes
Number of RGB LED pin headers	3
USB 2.0 ports quantity	4
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity	1
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity	1
Ethernet LAN (RJ-45) ports	1
HDMI ports quantity	1
HDMI version	2.1
Ethernet LAN	Yes
Ethernet interface type	2.5 Gigabit Ethernet
Wi-Fi	Yes
Top Wi-Fi standard	Wi-Fi 7 (802.11be)
Wi-Fi standards	802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax), Wi-Fi 6E (802.11ax), Wi-Fi 7 (802.11be)
Bluetooth	Yes
Bluetooth version	5.4
Motherboard chipset	AMD B840
Audio chip	Realtek ALC897
Audio output channels	7.1 channels
Product colour	Black
Component for	PC
Motherboard form factor	ATX
Motherboard chipset family	AMD
Windows operating systems supported	Windows 11 x64
PCI Express x16 (Gen 3.x) slots	4
PCI Express x16 (Gen 4.x) slots	1
Number of M.2 (M) slots	2
1st M.2 largest key size	2280
1st M.2 highest PCI Express generation	4.0
2nd M.2 largest key size	22110
2nd M.2 highest PCI Express generation	4.0
BIOS type	UEFI AMI
ACPI version	6.5
System Management BIOS (SMBIOS) version	3.7
Width	243.8 mm
Depth	304.8 mm

Full specifications

Marque	MSI
Référence fabricant	prob840pwifi
EAN	4711377286596

MSI PRO B840-P WIFI motherboard AMD B840 Socket AM5 ATX: complete technical analysis for 2026

The MSI PRO B840-P WIFI motherboard AMD B840 Socket AM5 ATX is one of the most searched products in the Informatique category in 2026. Offered by MSI, it is aimed at those looking for a reliable product at the best price. Our comparison tool lists all available offers from partner retailers to help you make the right choice without overspending. Comparison is free and requires no registration. In a few seconds, you can access all current offers to find the most competitive price.

Who is this Informatique for?

The MSI PRO B840-P WIFI motherboard AMD B840 Socket AM5 ATX benefits from the expertise of MSI 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 MSI PRO B840-P WIFI motherboard AMD B840 Socket AM5 ATX adapts to different levels of use in the Informatique category. Whether you use it intensively every day or more occasionally, this MSI 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 MSI MAG Forge M100R Midi Tower Black, Transparent.

Against the competition

In the Informatique market, the MSI PRO B840-P WIFI motherboard AMD B840 Socket AM5 ATX is well positioned thanks to its price from £135.93 and the strength of MSI. 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 391990 £	Tight budget, occasional use	Essential features, reliable for beginners
Mid-range	391990 £ to 914640 £	Regular daily use	Good value for money, solid performance
High-end	Over 914640 £	Demanding users	The best of the category, all advanced features

The best times to buy the MSI PRO B840-P WIFI motherboard AMD B840 Socket AM5 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 MSI PRO B840-P WIFI motherboard AMD B840 Socket AM5 ATX

How does the MSI PRO B840-P WIFI motherboard AMD B840 Socket AM5 ATX compare to competitors in the Informatique category?

In the Informatique category, the MSI PRO B840-P WIFI motherboard AMD B840 Socket AM5 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 MSI PRO B840-P WIFI motherboard AMD B840 Socket AM5 ATX suitable for beginners?

Yes, the MSI PRO B840-P WIFI motherboard AMD B840 Socket AM5 ATX is generally appreciated by both beginners and regular users of the Informatique category. It is quick to set up and MSI 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 MSI PRO B840-P WIFI motherboard AMD B840 Socket AM5 ATX?

Refurbished versions of the MSI PRO B840-P WIFI motherboard AMD B840 Socket AM5 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 MSI PRO B840-P WIFI motherboard AMD B840 Socket AM5 ATX drop during the year?

Prices for the MSI PRO B840-P WIFI motherboard AMD B840 Socket AM5 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 MSI PRO B840-P WIFI motherboard AMD B840 Socket AM5 ATX at all retailers?

Free delivery is not guaranteed for the MSI PRO B840-P WIFI motherboard AMD B840 Socket AM5 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.