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General Information |
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Summary |
PRO B850M-A WIFI
PRO B850M-A 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 Wi-Fi 7 with EZ Antenna, 5G LAN, PCIe 5.0 M.2 with EZ M.2 Shield Frozr II, and Supplemental PCIe Power, ready for the AMD Ryzen™ 9000 series processors.
BUSINESS ELEGANCE
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.
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 is ready for the challenge of heavy-loading tasks.
Extended Heatsink
Extended Heatsink enlarges the surface of heat dissipation and maintain the performance at heavy loads.
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.
HIGH-BANDWIDTH AND LOW-LATENCY NETWORK
MSI's premium network solution provides incredible data transfer speed for demanding users. |
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Processor |
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Processor manufacturer |
AMD |
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Processor socket |
Socket AM5 |
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Compatible processor series |
AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series |
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Supported processor sockets |
Socket AM5 |
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Memory |
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Supported memory types |
DDR5-SDRAM |
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Number of memory slots |
4 |
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Maximum internal memory |
256 GB |
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Memory slots type |
DIMM |
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Memory channels |
Dual-channel |
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ECC сompatibility |
Non-ECC |
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Supported memory clock speeds |
6000,6400,8200 MHz |
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Supported memory clock speed (max) |
8200 MHz |
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Storage controllers |
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Supported storage drive interfaces |
M.2 |
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Supported storage drive types |
HDD & SSD |
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Number of HDDs supported |
4 |
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Number of storage drives supported |
6 |
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RAID support |
Yes |
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RAID levels |
0, 1, 10 |
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Graphics |
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Parallel processing technology support |
Not supported |
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On-board graphics card |
No |
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Internal I/O |
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USB 2.0 connectors |
4 |
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USB 3.2 Gen 1 (3.1 Gen 1) connectors |
2 |
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USB 3.2 Gen 2 (3.1 Gen 2) connectors |
1 |
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Number of SATA III connectors |
4 |
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Number of SATA II connectors |
0 |
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Number of SATA connectors |
0 |
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Total number of SATA connectors |
4 |
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Front panel audio connector |
Yes |
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Front panel connector |
Yes |
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ATX Power connector (24-pin) |
Yes |
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CPU fan connector |
Yes |
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Number of CPU fan connectors |
2 |
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Number of water pump connectors |
1 |
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RGB LED pin header |
Yes |
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Number of RGB LED pin headers |
3 |
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Rear panel I/O ports |
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USB 2.0 ports quantity |
0 |
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USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity |
4 |
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USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity |
0 |
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USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity |
3 |
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USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity |
2 |
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Ethernet LAN (RJ-45) ports |
1 |
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VGA (D-Sub) ports quantity |
0 |
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HDMI ports quantity |
1 |
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DVI-D ports quantity |
0 |
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HDMI version |
2.1 |
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Network |
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Wi-Fi |
Yes |
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Ethernet LAN |
Yes |
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Ethernet interface type |
5 Gigabit Ethernet |
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Top Wi-Fi standard |
Wi-Fi 7 (802.11be) |
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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) |
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Bluetooth |
Yes |
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Bluetooth version |
5.4 |
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Features |
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Component for |
PC |
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Motherboard form factor |
micro ATX |
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Motherboard chipset family |
AMD |
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Motherboard chipset |
AMD B850 |
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Audio output channels |
7.1 channels |
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Audio chip |
Realtek ALC897 |
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Product colour |
Black |
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Windows operating systems supported |
Windows 11 x64 |
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Expansion slots |
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PCI Express x4 slots |
1 |
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PCI Express x16 slots |
1 |
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PCI Express x16 (Gen 3.x) slots |
1 |
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PCI Express x16 (Gen 4.x) slots |
1 |
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PCI Express x16 (Gen 5.x) slots |
1 |
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Number of M.2 (M) slots |
2 |
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1st M.2 largest key size |
2280 |
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1st M.2 highest PCI Express generation |
5.0 |
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2nd M.2 largest key size |
2280 |
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2nd M.2 highest PCI Express generation |
4.0 |
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BIOS |
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BIOS type |
UEFI AMI |
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BIOS memory size |
256 Mbit |
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ACPI version |
6.5 |
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System Management BIOS (SMBIOS) version |
3.7 |
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Weight & dimensions |
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Width |
243.8 mm |
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Depth |
243.8 mm |
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Other features |
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mSATA ports quantity |
0 |
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Technical details |
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Legal guarantee |
3 year(s) |
