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MSI AM5 PRO B850M-A WIFI PZ M-ATX AMD B850 Socket AM5 micro ATX

MSI AM5 PRO B850M-A WIFI PZ M-ATX, AMD, Socket AM5, AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000...Read full description ↓

Best offerPrice trend

£189.94

Rising
Price trend
Detailed analysis
Price history of MSI AM5 PRO B850M-A WIFI PZ M-ATX AMD B850 Socket AM5 micro ATX over the last 3 months
DatePrice
17 March 2026£189.49
26 March 2026£189.49
31 March 2026£189.49
2 April 2026£189.95
3 April 2026£189.95
5 April 2026£189.92
12 April 2026£189.94
18 April 2026£189.94
24 April 2026£186.85
27 April 2026£189.91
29 April 2026£189.91
7 May 2026£189.94
11 May 2026£186.17
25 May 2026£189.94
6 June 2026£189.94
12 June 2026£189.94
Offres:

Compare MSI AM5 PRO B850M-A WIFI PZ M-ATX AMD B850 Socket AM5 micro ATX prices UK

Product Information

PRO B850M-A WIFI PZ offers a sleek design with a harmonious silver-white color scheme that perfectly matches white PC builds. Its innovative back-connect design reduces the complexity of cable management, resulting in an aesthetically pleasing appearance for the system. It is engineered with many exclusive features of MSI, Wi-Fi 7 with EZ Antenna, 5G LAN, PCIe 5.0 M.2, and Supplemental PCIe Power, 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.

Back-Connect Design
The PRO B850M-A WIFI PZ features a back-connect design, which relocates the motherboard power, CPU power, fan pins, SATA, and other interfaces to the back of the motherboard. This allows for simpler cable management, while also providing a cleaner and more aesthetically pleasing appearance for the system.

One Finger for EZ GPU Installation
The new EZ PCIe Clip II, located on the first slot, features the rebounding force mechanism that allows for easy removal of the graphics card by pressing the tail-like lock with one finger. Due to this exquisite design, users can uninstall the graphics cards effortlessly, even in the cramped case spaces.

The Pre-Installed I/O Shield offers a streamlined and hassle-free installation experience by eliminating the need to manually fit the I/O shield during motherboard setup. With its built-in design, it ensures proper alignment and a secure fit, providing both protection and convenience while enhancing the overall durability of your build.

MSI EZ Antenna makes the process effortless by simply attaching fasteners to the motherboard without rotation.

Onboard LEDs will indicate the source of the problem so you know exactly where to look to get up and running again.

This LED lights up when it detects faulty memory in slots, eliminating guesswork from troubleshooting.

DIRECT 8+2+1 POWER DESIGN
Unleash and sustain the maximum performance with a VRM design built with a total of 8+2+1 digital power phases. With 8+4-pin power connectors, PRO B850M-A WIFI PZ is ready for the challenge of heavy-loading tasks.

OPTIMIZED PCB SOLUTION
The PCB design has been optimized for higher bandwidth and faster transfer speeds, which is also beneficial for reliable circuit transmission.

DDR5 MEMORY SUPPORT WITH HIGH PERFORMANCE
A huge step of DDR performance enhancement with the latest DDR5 memory. Combines with dedicated SMT welding process and MSI Memory Boost technology, PRO B850M-A WIFI PZ is ready to deliver the world class memory performance.

Transient Voltage Suppressors (TVS)
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.

DIY 2.0 – INTEGRATING WITH THE SYSTEM ENVIRONMENT
Connect and synchronize with MSI coolers and cases with strategically positioned pin-header locations including a dedicated pump-fan header.

Cooling Wizard serves as a comprehensive solution for managing fan settings across all MSI products. It ensures superior cooling performance and noise reduction for your gaming PC, offering compatibility with PWM/DC fans and pumps, customizable options, and intuitive temperature monitoring for optimal operation with one click.

HIGH-BANDWIDTH AND LOW-LATENCY NETWORK
MSI's premium network solution provides incredible data transfer speed for demanding users.

THE NEXT GEN WI-FI SOLUTION – WI-FI 7
Wi-Fi 7 is the latest wireless solution that takes a huge leap forward with multiple improvements to meet the traffic demand brought and the growing number of wireless devices.

AI LAN Manager
MSI AI LAN Manager automatically classifies and prioritizes the latency-sensitive applications for online games, giving you the best online gaming experience with low latency.

FAST AND FUTURE-READY STORAGE
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 5 PCI-E WITH STEEL ARMOR
SMT PCIE 5.0 SLOT

The advanced SMT(Surface Mount Technology) PCIE slot diminish interference and electrical noise, fully support the PCI-E 5.0 signal.

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.










Motherboards MSI

Product

Name
MSI AM5 PRO B850M-A WIFI PZ M-ATX AMD B850 Socket AM5 micro ATX
Category
Motherboards
Brand
MSI

Weight & dimensions

Width
243.8 mm
Depth
243.8 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
6000,6400,8200 MHz
Supported memory clock speed (max)
8200 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
0
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity
4
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
3
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity
2
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 II connectors
0
Number of SATA connectors
0
Total number of SATA connectors
4
Front panel audio connector
Yes
Front panel connector
Yes
ATX Power connector (24-pin)
Yes
CPU fan connector
Yes
Number of CPU fan connectors
2
Number of water pump connectors
1
RGB LED pin header
Yes
Number of RGB LED pin headers
3

Network

Wi-Fi
Yes
Ethernet LAN
Yes
Ethernet interface type
5 Gigabit Ethernet
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

Expansion slots

PCI Express x4 slots
1
PCI Express x16 slots
1
PCI Express x16 (Gen 3.x) slots
1
PCI Express x16 (Gen 4.x) slots
1
PCI Express x16 (Gen 5.x) slots
1
Number of M.2 (M) slots
2
1st M.2 largest key size
2280
1st M.2 highest PCI Express generation
5.0
2nd M.2 largest key size
2280
2nd M.2 highest PCI Express generation
4.0

BIOS

BIOS type
UEFI AMI
BIOS memory size
256 Mbit
ACPI version
6.5
System Management BIOS (SMBIOS) version
3.7

Other features

mSATA ports quantity
0

Graphics

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

Features

Component for
PC
Motherboard form factor
micro ATX
Motherboard chipset family
AMD
Motherboard chipset
AMD B850
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
Supported storage drive types
HDD & SSD
Number of HDDs supported
4
Number of storage drives supported
6
RAID support
Yes
RAID levels
0, 1, 10

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