The MSI MAG B850 TOMAHAWK WIFI is an ATX motherboard built on the AMD B850 chipset, designed to support AMD Ryzen 7000, 8000, and 9000 Series processors via Socket AM5. Finished in white, this board measures 244 x 305 mm and offers a solid foundation for both high-performance builds and future-ready upgrades. It accommodates up to 256 GB of DDR5 memory across four DIMM slots in dual-channel configuration, with supported speeds starting at 4800 MHz and overclocked speeds reaching up to 8400 MHz.
Storage and Expansion
The MSI MAG B850 TOMAHAWK WIFI features four M.2 slots for fast storage options. The first slot supports up to size 22110 with PCIe 5.0, while the second slot also runs on PCIe 5.0 at up to size 2280. The third and fourth slots operate on PCIe 4.0 and support sizes up to 2280. Additional storage connectivity is provided through four SATA III connectors. For expansion, the board includes a PCIe 5.0 x16 slot, a PCIe 4.0 x16 slot, and a PCIe 3.0 x16 slot, offering flexibility for graphics cards and other add-in devices.
Connectivity and Audio
On the connectivity front, the board includes Wi-Fi 7 support alongside Bluetooth 5.4, and a Realtek RTL8126 5G wired LAN controller. The USB lineup is extensive, including multiple USB 3.2 Gen 2 Type-A and Type-C ports as well as USB 2.0 outputs. Audio is handled by the Realtek ALC4080 chip supporting 7.1 channel output, complemented by an S/PDIF output for digital audio connectivity.
Product number manufacturer:
MAG B850 TOMAHAWK WIFI
Audio
Connectivity
USB 3.2 (Gen 1) type A ports:
5
USB 3.2 (Gen 2) type A ports:
2
USB 3.2 (Gen 2) type C ports:
3
Expansion slots
PCI Express 3.0 x16 slots:
1
Internal I/O
1st M.2 maximum slot size:
22110
1st M.2 slot PCI Express generation:
5.0
2nd M.2 maximum slot size:
2280
2nd M.2 slot PCI Express generation:
5.0
3rd M.2 maximum slot size:
2280
3rd M.2 slot PCI Express generation:
4.0
4th M.2 maximum slot size:
2280
4th 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:
4800 MHz
Supported memory clock speeds (OC):
8400 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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