MAG B850 TOMAHAWK MAX WIFI

AMD AM5 gaming motherboard

Last updated Nov 1, 2026 · 4 entries in Page history

256GB

Max memory

As the source prints itMEMORY4x DDR5 UDIMM, Maximum Memory Capacity 256GB Memory Support DDR5 8400 - 5600 (OC) MT/s / 5600 - 4800 (JEDEC) MT/s Ryzen™ 9000 Series Processors max. overclocking frequency: • 1DPC 1R Max speed up to 8400+ MT/s • 1DPC 2R Max speed up to 6400+ MT/s • 2DPC 1R Max speed up to 6400+ MT/s • 2DPC 2R Max speed up to 6400+ MT/s Supports AMD POR Speed and JEDEC Speed Supports Memory Overclocking and AMD EXPO™ Supports Dual-Channel mode Supports Non-ECC, Un-buffered memory Supports CUDIMM, Clock Driver bypass mode only* * CUDIMM support and POR boot frequency may vary by CPU series, with manual overclocking available after boot. Certain CPUs may fail to boot, but future BIOS updates will improve compatibility. • The DIMM slots on this motherboard have double-sided latches. • Memory compatibility and supported speeds can vary depending on the CPU and memory configuration. For detailed information, please refer to the Memory Compatibility List available on the product’s Support page or visit https://www.msi.com/support/.Press to see it in the sheet ↓

8400MT/s

Max memory speed (OC)

As the source prints itMEMORY4x DDR5 UDIMM, Maximum Memory Capacity 256GB Memory Support DDR5 8400 - 5600 (OC) MT/s / 5600 - 4800 (JEDEC) MT/s Ryzen™ 9000 Series Processors max. overclocking frequency: • 1DPC 1R Max speed up to 8400+ MT/s • 1DPC 2R Max speed up to 6400+ MT/s • 2DPC 1R Max speed up to 6400+ MT/s • 2DPC 2R Max speed up to 6400+ MT/s Supports AMD POR Speed and JEDEC Speed Supports Memory Overclocking and AMD EXPO™ Supports Dual-Channel mode Supports Non-ECC, Un-buffered memory Supports CUDIMM, Clock Driver bypass mode only* * CUDIMM support and POR boot frequency may vary by CPU series, with manual overclocking available after boot. Certain CPUs may fail to boot, but future BIOS updates will improve compatibility. • The DIMM slots on this motherboard have double-sided latches. • Memory compatibility and supported speeds can vary depending on the CPU and memory configuration. For detailed information, please refer to the Memory Compatibility List available on the product’s Support page or visit https://www.msi.com/support/.Press to see it in the sheet ↓

4M.2 slots

M.2 slots

As the source prints itSTORAGE4x M.2 M.2_1 Source (From CPU) supports up to PCIe 5.0 x4 , supports 22110/2280 devices M.2_2 Source (From CPU) supports up to PCIe 5.0 x4 , supports 2280/2260 devices M.2_3 Source (From Chipset) supports up to PCIe 4.0 x2 , supports 2280/2260 devices M.2_4 Source (From Chipset) supports up to PCIe 4.0 x4 , supports 2280/2260 devices 4x SATA 6G M2_1 slot • Supports up to PCIe 5.0 x4 (For Ryzen™ 9000/ 7000 Series processors) • Supports up to PCIe 4.0 x4 (For Ryzen™ 8000 Series processors) M2_2 slot • Supports up to PCIe 5.0 x4 (For Ryzen™ 9000/ 7000 Series processors) • Supports up to PCIe 4.0 x4 (For Ryzen™ 8700/ 8600/ 8400 Series processors) • Supports up to PCIe 4.0 x2 (For Ryzen™ 8500/ 8300 Series processors) *PCI_E3 slot will run at x2 speed when installing device in the M2_3 slot. You can switch PCI_E3 slot to x4 in the BIOS, but this will disable the M2_3 slot. ** Please refer to the manual for M.2 SSD heatsink restrictionsPress to see it in the sheet ↓

5.8Gbps

Wi-Fi 7 speed

As the source prints itWIRELESS LAN & BLUETOOTHWi-Fi 7 Solution The Wireless module is pre-installed in the M.2 (Key-E) slot Supports MU-MIMO TX/RX, 2.4GHz/ 5GHz/ 6GHz* (320MHz) up to 5.8Gbps Supports 802.11 a/ b/ g/ n/ ac/ ax/ be Supports Bluetooth® 5.4**, MLO, 4KQAM * 6GHz band support may depend on every country’s regulations and Wi-Fi 7 will be ready in Windows 11 version 24H2. ** The Bluetooth version may be updated, please refer to the Wi-Fi chipset vendor’s website for details. Bluetooth 5.4 will be ready in Windows 11 version 24H2.Press to see it in the sheet ↓