Motherboard MSI MAG B850 TOMAHAWK WIFI, AMD B850, Socket AM5, ATX, DDR5, 4× DIMM, up to 256 GB, 5 GbE, Wi‑Fi 7

MSI MAG B850 TOMAHAWK WIFI is an ATX motherboard for Socket AM5 processors based on the AMD B850 chipset. It supports AMD Ryzen 7000/8000/9000 series desktop processors, four DDR5 DIMM slots up to 256 GB, M.2 and SATA III storage with RAID support, one PCIe x16 slot with PCIe 5.0 capability, integrated 5 Gigabit Ethernet and Wi‑Fi 7 (802.11be). The board includes a robust VRM design, modern connectivity including USB 20 Gbps ports, and several EZ DIY features to simplify installation and maintenance.

Advantages

The motherboard combines a 14+2+1 digital power phase design with dual 8-pin CPU power connectors and 80A Smart Power Stages to provide stable power delivery for high-end AMD Ryzen processors. OC Engine enables independent Base Clock control for finer overclock tuning while PCB Fabric Technology improves signal integrity and thermal stability. Built-in Wi‑Fi 7 and 5 Gigabit Ethernet deliver high-speed networking, and multiple EZ DIY elements (tool-less M.2 clip, shielded M.2, EZ PCIe release and EZ antenna) make component installation and upgrades more convenient.

Suitable for

• Gaming PCs using AMD Ryzen 7000/8000/9000 series processors
• High-performance desktop builds requiring PCIe 5.0 and fast NVMe storage
• Workstations needing stable power delivery and multiple storage drives with RAID
• Systems that require modern networking: Wi‑Fi 7 and 5 Gigabit Ethernet

Key specifications

• Form factor: ATX
• Chipset: AMD B850
• Socket: Socket AM5 (supports AMD Ryzen 7000/8000/9000 Series)
• Memory: 4× DDR5 DIMM slots, up to 256 GB, dual channel, DDR5 8200+ MT/s (OC)
• Power design: 14+2+1 digital power phases, dual 8‑pin CPU power connectors, 80A Smart Power Stage
• Expansion: 1× PCIe x16 (PCIe 5.0 ready)
• Storage: Lightning Gen 5 x4 M.2, multiple M.2 slots, SATA III, RAID support (0/1/10)
• Networking: 5 Gigabit Ethernet and Wi‑Fi 7 (802.11be), Bluetooth 5.4
• Audio: Realtek ALC4080, 7.1 channels (Audio Boost 5)
• BIOS: UEFI, 512 Mbit; ACPI version 6.5

How to use

Install the motherboard into an ATX-compatible case, connect the dual 8-pin CPU power connectors and system power, insert a supported AM5 CPU and apply an appropriate CPU cooler. Populate up to four DDR5 memory modules according to the motherboard manual for dual-channel operation. Install M.2 SSDs using the EZ M.2 Shield Frozr II and EZ M.2 Clip II for tool-less mounting where applicable, and connect SATA drives to the SATA III ports if needed. Connect front-panel USB Type-C, PCIe devices and configure storage RAID through the UEFI BIOS. Use the included EZ antenna for Wi‑Fi 7 and pair Bluetooth devices via the OS or BIOS utilities.

Recommendations

For stable performance with high-core-count Ryzen 9000 series processors, use high-quality 80 PLUS rated power supplies, ensure both 8-pin CPU power connectors are connected, and install memory modules in the recommended slots for dual-channel operation. Update the UEFI BIOS and MSI Center utilities to the latest versions to enable AI features and optimal device compatibility.