BIOS - ACPI version - 6.5
BIOS - BIOS memory size - 256 Mbit
BIOS - BIOS type - UEFI AMI
BIOS - System Management BIOS (SMBIOS) version - 3.7
Brand - MSI
BrandPartCode - PRO B850M-A WIFI PZ
Category - Motherboards
dimensionalWeight - 1239
Expansion slots - 1st M.2 highest PCI Express generation - 5.0
Expansion slots - 1st M.2 largest key size - 2280
Expansion slots - 2nd M.2 highest PCI Express generation - 4.0
Expansion slots - 2nd M.2 largest key size - 2280
Expansion slots - Number of M.2 (M) slots - 2
Expansion slots - PCI Express x4 slots - 1
Expansion slots - PCI Express x16 (Gen 3.x) slots - 1
Expansion slots - PCI Express x16 (Gen 4.x) slots - 1
Expansion slots - PCI Express x16 (Gen 5.x) slots - 1
Expansion slots - PCI Express x16 slots - 1
Features - Audio chip - Realtek ALC897
Features - Audio output channels - 7.1 channels
Features - Component for - PC
Features - Motherboard chipset - AMD B850
Features - Motherboard chipset family - AMD
Features - Motherboard form factor - micro ATX
Features - Product colour - Black
Features - Windows operating systems supported - Windows 11 x64
Graphics - On-board graphics card - No
Graphics - Parallel processing technology support - Not supported
GTIN - 4711377384308
Internal I/O - ATX Power connector (24-pin) - Yes
Internal I/O - CPU fan connector - Yes
Internal I/O - Front panel audio connector - Yes
Internal I/O - Front panel connector - Yes
Internal I/O - Number of CPU fan connectors - 2
Internal I/O - Number of RGB LED pin headers - 3
Internal I/O - Number of SATA III connectors - 4
Internal I/O - Number of water pump connectors - 1
Internal I/O - RGB LED pin header - Yes
Internal I/O - Total number of SATA connectors - 4
Internal I/O - USB 2.0 connectors - 4
Internal I/O - USB 3.2 Gen 1 (3.1 Gen 1) connectors - 2
Internal I/O - USB 3.2 Gen 2 (3.1 Gen 2) connectors - 1
LongDesc - 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 DesignThe 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 InstallationThe 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 DESIGNUnleash 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 SOLUTIONThe 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 PERFORMANCEA 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 ENVIRONMENTConnect 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 NETWORKMSI's premium network solution provides incredible data transfer speed for demanding users.THE NEXT GEN WI-FI SOLUTION – WI-FI 7Wi-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 ManagerMSI 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 STORAGEMSI 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 ARMORSMT PCIE 5.0 SLOTThe advanced SMT(Surface Mount Technology) PCIE slot diminish interference and electrical noise, fully support the PCI-E 5.0 signal.REINFORCED,HEAVY SOLDERED CONNECTIONSMSI 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.
LongProductName - B850, AM5, DDR5, HDMI, DP, PCI-E Gen 5, M.2, USN 10 Gbps, Wi-Fi 7, BT 5.4
LongSummaryDescription - MSI AM5 PRO B850M-A WIFI PZ M-ATX. Processor manufacturer: AMD, Processor socket: Socket AM5, Compatible processor series: AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series. Supported memory types: DDR5-SDRAM, Maximum internal memory: 256 GB, Memory slots type: DIMM. Supported storage drive interfaces: M.2, Supported storage drive types: HDD & SSD, RAID levels: 0, 1, 10. 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.... Component for: PC, Motherboard form factor: micro ATX, Motherboard chipset family: AMD
Memory - ECC сompatibility - Non-ECC
Memory - Maximum internal memory - 256 GB
Memory - Memory channels - Dual-channel
Memory - Memory slots type - DIMM
Memory - Number of memory slots - 4
Memory - Supported memory clock speed (max) - 8200 MHz
Memory - Supported memory clock speeds - 6000,6400,8200 MHz
Memory - Supported memory types - DDR5-SDRAM
Network - Bluetooth - Yes
Network - Bluetooth version - 5.4
Network - Ethernet interface type - 5 Gigabit Ethernet
Network - Ethernet LAN - Yes
Network - Top Wi-Fi standard - Wi-Fi 7 (802.11be)
Network - Wi-Fi - Yes
Network - 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)
Processor - Compatible processor series - AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series
Processor - Processor manufacturer - AMD
Processor - Processor socket - Socket AM5
Processor - Supported processor sockets - Socket AM5
producerCode - PRO B850M-A WIFI PZ
ProductName - AM5 PRO B850M-A WIFI PZ M-ATX
productName - Płyta główna MSI PRO B850M-A WIFI PZ
productSize - Normal
Rear panel I/O ports - Ethernet LAN (RJ-45) ports - 1
Rear panel I/O ports - HDMI ports quantity - 1
Rear panel I/O ports - HDMI version - 2.1
Rear panel I/O ports - USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity - 4
Rear panel I/O ports - USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity - 3
Rear panel I/O ports - USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity - 2
ShortSummaryDescription - MSI AM5 PRO B850M-A WIFI PZ M-ATX, AMD, Socket AM5, AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series, Socket AM5, DDR5-SDRAM, 256 GB
sizeX - 290
sizeY - 75
sizeZ - 285
Storage controllers - Number of HDDs supported - 4
Storage controllers - Number of storage drives supported - 6
Storage controllers - RAID levels - 0, 1, 10
Storage controllers - RAID support - Yes
Storage controllers - Supported storage drive interfaces - M.2
Storage controllers - Supported storage drive types - HDD & SSD
Title - MSI AM5 PRO B850M-A WIFI PZ M-ATX AMD B850 Socket AM5 micro ATX
URL - https://www.msi.com/Motherboard/PRO-B850M-A-WIFI-PZ/Overview
WarrantyInfo -
warrantyLength - 36
warrantyType - G
weight - 1600
Weight & dimensions - Depth - 243.8 mm
Weight & dimensions - Width - 243.8 mm
