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

SKU
PRO B850M-A WIFI PZ
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B850, AM5, DDR5, HDMI, DP, PCI-E Gen 5, M.2, USN 10 Gbps, Wi-Fi 7, BT 5.4
More Information
SKU PRO B850M-A WIFI PZ
EAN 4711377384308
Manufacturer MSI
Availability No
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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.










Internal I/O
Number of M.2 (M) slots2
USB 3.2 Gen 2 (3.1 Gen 2) connectors1
Total number of SATA connectors4
Front panel connectorYes
Supported storage drive interfacesM.2
USB 2.0 connectors4
USB 3.2 Gen 1 (3.1 Gen 1) connectors2
mSATA ports quantity0
Number of SATA connectors0
Number of SATA III connectors4
Number of SATA II connectors0
Front panel audio connectorYes
CPU fan connectorYes
ATX Power connector (24-pin)Yes
RGB LED pin headerYes
Number of CPU fan connectors2
Number of water pump connectors1
Number of RGB LED pin headers3
Technical details
Motherboard chipset familyAMD
Motherboard chipsetAMD B850
Supported processor socketsSocket AM5
Parallel processing technology supportNot supported
On-board graphics cardNo
HDMI version2.1
Motherboard form factormicro ATX
Component forPC
Total number of SATA connectors4
Audio
Audio output channels7.1 channels
Performance
Number of HDDs supported4
Supported storage drive typesHDD & SSD
Windows operating systems supportedWindows 11 x64
Motherboard chipset familyAMD
Motherboard chipsetAMD B850
RAID levels0, 1, 10
Supported processor socketsSocket AM5
Audio output channels7.1 channels
Motherboard form factormicro ATX
Component forPC
Processor
Processor manufacturerAMD
Compatible processor seriesAMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series
Supported processor socketsSocket AM5
Processor socketSocket AM5
Memory
Number of memory slots4
Memory slots typeDIMM
Supported memory typesDDR5-SDRAM
Memory channelsDual-channel
Supported memory clock speeds6000,6400,8200 MHz
Maximum internal memory256 GB
Supported memory clock speed (max)8200 MHz
ECC сompatibilityNon-ECC
Storage controllers
Number of HDDs supported4
Supported storage drive typesHDD & SSD
Supported storage drive interfacesM.2
RAID levels0, 1, 10
Number of storage drives supported6
RAID supportYes
Graphics
Parallel processing technology supportNot supported
On-board graphics cardNo
Rear panel I/O ports
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity4
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity0
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity3
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity2
USB 2.0 ports quantity0
VGA (D-Sub) ports quantity0
HDMI version2.1
HDMI ports quantity1
Ethernet LAN (RJ-45) ports1
DVI-D ports quantity0
Network
Ethernet LANYes
Wi-FiYes
Wi-Fi standards802.11a, 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)
Ethernet interface type5 Gigabit Ethernet
BluetoothYes
Bluetooth version5.4
Top Wi-Fi standardWi-Fi 7 (802.11be)
Features
Windows operating systems supportedWindows 11 x64
Motherboard chipset familyAMD
Motherboard chipsetAMD B850
Supported processor socketsSocket AM5
Audio output channels7.1 channels
Motherboard form factormicro ATX
Component forPC
Audio chipRealtek ALC897
Product colourBlack
Expansion slots
Number of M.2 (M) slots2
PCI Express x16 (Gen 3.x) slots1
PCI Express x4 slots1
PCI Express x16 slots1
PCI Express x16 (Gen 4.x) slots1
PCI Express x16 (Gen 5.x) slots1
1st M.2 largest key size2280
1st M.2 highest PCI Express generation5.0
2nd M.2 largest key size2280
2nd M.2 highest PCI Express generation4.0
BIOS
BIOS typeUEFI AMI
BIOS memory size256 Mbit
ACPI version6.5
System Management BIOS (SMBIOS) version3.7
Software
Windows operating systems supportedWindows 11 x64
Weight & dimensions
Width243.8 mm
Depth243.8 mm
Other features
mSATA ports quantity0