The MSI MAG B850 GAMING PLUS MAX WIFI is an ATX motherboard built on the AMD B850 chipset, designed for use with AMD Ryzen 7000, 8000, and 9000 Series processors via the Socket AM5 platform. Finished in white, this board measures 304.8 x 243.8 mm and offers a solid foundation for modern desktop builds. It supports DDR5 memory across four DIMM slots in a dual-channel configuration, with speeds up to 5600 MHz natively and up to 8200 MHz when overclocked, for a maximum capacity of 256 GB.
Storage and Expansion
The MSI MAG B850 GAMING PLUS MAX WIFI provides extensive storage and expansion options. Three M.2 slots are available, with the first supporting PCIe 5.0 up to 2280, the second supporting PCIe 4.0 up to 22110, and the third supporting PCIe 4.0 up to 2280. Additional storage connectivity comes via four SATA III ports. For expansion cards, the board features one PCIe 5.0 x16 slot, one PCIe 4.0 x16 slot, and two PCIe 3.0 x1 slots.
Connectivity and Networking
On the connectivity front, this motherboard is well equipped for modern use. It includes Wi-Fi 7 support alongside Bluetooth 5.4 for wireless communication. Wired networking is handled by a Realtek RTL8126 controller offering 5 Gigabit speeds. USB options include USB 3.2 Gen 2 Type-C and Type-A ports, along with USB 3.2 Gen 1 and USB 2.0 ports. Audio is managed by a Realtek ALC897 chip supporting 7.1 channel output.
Product number manufacturer:
MAG B850 GAMING PLUS MAX WIFI
Audio
BIOS
Connectivity
USB 3.2 (Gen 1) type A ports:
1
USB 3.2 (Gen 2) type A ports:
1
USB 3.2 (Gen 2) type C ports:
2
Expansion slots
PCI Express 3.0 x1 slots:
2
Internal I/O
1st M.2 maximum slot size:
2280
1st M.2 slot PCI Express generation:
5.0
2nd M.2 maximum slot size:
22110
2nd M.2 slot PCI Express generation:
4.0
3rd M.2 maximum slot size:
2280
3rd M.2 slot PCI Express generation:
4.0
USB 3.1 (3.1 Gen 2) connectors:
1
USB 3.1 (Gen 1) header(s):
4
Memory
Supported memory clock speeds:
5600 MHz
Supported memory clock speeds (OC):
8200 MHz
Networking
Network technology (wired):
Wi-Fi 1 (802.11b), Wi-Fi 2 (802.11a), Wi-Fi 3 (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)
Physical characteristics
Processor
Compatible processor series:
AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series
Sockets
Technical details
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