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MSI Pro B840-S EVO WIFI6E AMD B840 Socket AM5 ATX

MSI Pro B840-S EVO WIFI6E, AMD, Socket AM5, AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series, Socket...Read full description ↓

Best offerPrice trend

£134.98

Stable
Price trend
Detailed analysis
Price history of MSI Pro B840-S EVO WIFI6E AMD B840 Socket AM5 ATX over the last 3 months
DatePrice
13 April 2026£134.98
20 April 2026£134.98
21 April 2026£134.98
25 April 2026£134.98
27 April 2026£134.98
29 April 2026£134.98
1 May 2026£134.98
5 May 2026£134.98
8 May 2026£134.98
13 May 2026£134.98
18 May 2026£134.98
19 May 2026£134.98
20 May 2026£134.98
25 May 2026£134.98
26 May 2026£134.98
1 June 2026£134.98
15 June 2026£134.98
19 June 2026£134.98
29 June 2026£134.98
1 July 2026£134.98
2 July 2026£134.98
6 July 2026£134.98
8 July 2026£134.98

Compare MSI Pro B840-S EVO WIFI6E AMD B840 Socket AM5 ATX prices UK

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Product Information

PRO B840-S EVO WIFI6E
PRO B840-S EVO WIFI6E offers a simple design with a harmonious color scheme that perfectly matches black PC builds. It is engineered with many exclusive features of MSI, a Wi-Fi 6E with EZ Antenna, 2.5G LAN, and PCIe 4.0 M.2 with M.2 Shield Frozr, ready for the AMD Ryzen™ 9000 series processors.

The 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.

Unleash 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-S EVO WIFI6E is ready for the challenge of heavy-loading tasks.

A huge step of DDR performance enhancement with the latest DDR5 memory. Combines with dedicated SMT welding process and MSI Memory Boost technology, PRO B840-S EVO WIFI6E is ready to deliver the world class memory performance.

Transient Voltage Suppressors (TVS) are safety devices used to protect against excessive voltage. All motherboard models of MSI are equipped with TVS. When the voltage abnormally rises, the TVS switches from a high-resistance state to a low-resistance state, diverting the excessive voltage to ground. This helps prevent circuit damage caused by high voltage.

M.2 Shield Frozr
Strengthened M.2 thermal solution helps keep M.2 SSD safe and ensures incredible performance.

7W/mK Thermal Pad & Additional Choke Pad
High-quality 7W/mK MOSFET thermal pads and additional choke thermal pads ensure stable performance when all cores are runnging at high speed.

Enlarged Chipset Heatsink
The enlarged heatsink is designed to reduce dust and noise and capable of maintaining high efficiency of heat dissipation.

MSI's premium network solution provides incredible data transfer speed for demanding users.

MSI PRO series motherboards support all the latest storage standards, which allows users to connect any ultra-fast storage device. Start games faster, load levels faster and have a real advantage over your enemies.

LIGHTNING GEN 4 PCI-E
MSI lightning Gen 4 PCI-E represents the bandwidth of a x16 interface to 64GB/s that has doubled compared to its previous generation.

REINFORCED,
HEAVY SOLDERED CONNECTIONS

MSI PCI Express Steel Armor slots are secured to the motherboard with extra solder points and support the weight of heavy graphics cards. When every advantage in games counts, Steel Armor shields the point of contact from electromagnetic interference.

REINFORCED,
HEAVY SOLDERED CONNECTIONS

MSI PCI Express Steel Armor slots are secured to the motherboard with extra solder points and support the weight of heavy graphics cards. When every advantage in games counts, Steel Armor shields the point of contact from electromagnetic interference.

Splash on some color and vibrant RGB lighting effects using Mystic Light utility of MSI Center, which has million colors and fancy LED effects. Enjoy the full control and creativity of your PC's lighting with one software.

MSI’s newly designed CLICK BIOS X offers an aesthetically pleasing and user-friendly experience. The new design ensures that users of all experience levels can quickly access and adjust system configurations with ease.

MSI’s newly designed CLICK BIOS X offers an aesthetically pleasing and user-friendly experience. The new design ensures that users of all experience levels can quickly access and adjust system configurations with ease.

MSI brand new MSI Center unifies a suite of MSI software utilities into a single centralized application. Take control of advanced motherboards features and unleash endless possibilities.

MSI motherboards provide 60 days free trial of AIDA64 Extreme - MSI edition. AIDA64 Extreme is an almighty application for system information, diagnostics and benchmarks. With the application, you can monitor the detailed hardware and software information on PC and save it to file in multiple formats such as CSV and HTML.

Multiple layers of protection for your devices, online privacy features including our Secure VPN, plus Dark Web Monitoring - all in a single solution. With MSI motherboards, you can enjoy a 60-day free trial of Norton 360 Deluxe.

Motherboards MSI

Product

Name
MSI Pro B840-S EVO WIFI6E AMD B840 Socket AM5 ATX
Category
Motherboards
Brand
MSI

Weight & dimensions

Width
243.8 mm
Depth
304.8 mm

Memory

Supported memory types
DDR5-SDRAM
Number of memory slots
4
Maximum internal memory
256 GB
Memory slots type
DIMM
Memory channels
Dual-channel
ECC сompatibility
Non-ECC
Supported memory clock speeds
4800,5600,8000,6400 MHz
Supported memory clock speed (max)
8000 MHz

Processor

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

Rear panel I/O ports

USB 2.0 ports quantity
4
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity
2
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity
0
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
VGA (D-Sub) ports quantity
0
HDMI ports quantity
1
DVI-D ports quantity
0
HDMI version
2.1

Internal I/O

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
Number of SATA connectors
0
Number of SATA Express connectors
0
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

Expansion slots

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

BIOS type
UEFI AMI
ACPI version
6.5
System Management BIOS (SMBIOS) version
3.7

Graphics

Parallel processing technology support
Not supported
On-board graphics card
No

Features

Component for
PC
Motherboard form factor
ATX
Motherboard chipset family
AMD
Motherboard chipset
AMD B840
Audio output channels
7.1 channels
Audio chip
Realtek ALC897
Product colour
Black
Windows operating systems supported
Windows 11 x64

Storage controllers

Supported storage drive interfaces
M.2, Micro SATA III
Supported storage drive types
HDD & SSD
Number of HDDs supported
4
Number of storage drives supported
7
RAID support
Yes
RAID levels
0, 1, 10

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