MSI MAG B850 Tomahawk Max WIFI ATX Motherboard
MPN MAG-B850-TOMAHAWK-MAX-WIFI · Brand MSI · ATX
The MSI MAG B850 Tomahawk Max WIFI is an ATX motherboard for AMD AM5 processors (Ryzen 9000/8000/7000) featuring DDR5 up to 8400+ MT/s, PCIe 5.0, Wi-Fi 7, 5G LAN, and a 14+2+1 power delivery system
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Overview
The MSI MAG B850 Tomahawk Max WIFI is an ATX form-factor motherboard built on the AMD B850 chipset with an AM5 socket, offering a solid platform for AMD Ryzen 9000, 8000, and 7000 series desktop processors. Designed for gamers and power users who demand durability and connectivity without compromise, it pairs a robust power delivery system with modern I/O to handle demanding workloads and fast peripheral transfers. At the heart of the power delivery is a 14+2+1 Duet Rail Power System with dual 8-pin CPU power connectors and 80A Smart Power Stage components, supporting high-performance processors without thermal throttling. The 8-layer PCB uses 2 oz thickened copper traces and server-grade materials to maintain signal integrity and long-term stability. Memory support covers dual-channel DDR5 with speeds reaching up to DDR5-8400+ MT/s under overclocking, with compatibility for AMD EXPO profiles, JEDEC speeds, and CUDIMM modules. Maximum capacity reaches 256 GB across four DIMM slots, all fitted with double-sided latches. Expansion flexibility is addressed through three PCIe slots: the primary PCI_E1 slot runs PCIe 5.0 x16 for Ryzen 9000 and 7000 processors, while Ryzen 8000-series CPUs run it at PCIe 4.0 x8 or x4 depending on SKU. A second slot operates at PCIe 3.0 x1 and a third at PCIe 4.0 x4, both sourced from the chipset. Storage is covered by M.2 slots including a Lightning Gen 5 x4 M.2 interface. MSI's EZ M.2 Shield Frozr II thermal solution keeps SSDs cool during sustained transfers, and the screwless EZ M.2 Clip II simplifies installation. Networking leads with a Wi-Fi 7 wireless module paired with Bluetooth 5.4, alongside a dedicated 5G wired LAN port for low-latency, high-throughput connectivity. The rear I/O provides USB 10Gbps Type-C (two ports), USB 10Gbps Type-A (multiple), USB 5Gbps Type-A, and USB 2.0 ports, complemented by an HDMI output and a Flash BIOS button for tool-free firmware updates. Internally, a USB 20Gbps Type-C front-panel header supports next-generation case connectivity, along with four USB 5Gbps Type-A and four USB 2.0 internal headers. Audio Boost 5 technology isolates audio circuitry on the PCB to reduce noise and deliver clearer sound output. RGB enthusiasts will find three Addressable V2 RGB headers (JARGB_V2) and one standard RGB header (JRGB) for full lighting ecosystem integration. — Verified Specifications — Socket: AM5 | Chipset: AMD B850 | Form Factor: ATX CPU Support: AMD Ryzen 9000 / 8000 / 7000 series Memory: DDR5, Dual Channel, up to 256 GB, DDR5-8400+ MT/s (OC) Primary PCIe Slot: PCIe 5.0 x16 (CPU, Ryzen 9000/7000) / PCIe 4.0 x8 (Ryzen 8700/8600/8400) M.2: Lightning Gen 5 x4 (primary) Wireless: Wi-Fi 7 + Bluetooth 5.4 Wired LAN: 5G Rear USB: 2× USB 10Gbps Type-C, 3× USB 10Gbps Type-A, USB 5Gbps Type-A, USB 2.0 Internal USB: 1× USB 20Gbps Type-C, 4× USB 5Gbps Type-A, 4× USB 2.0 Video Output: 1× HDMI Warranty: 3 Years
Datasheet
| Memory Type | DDR5 |
|---|---|
| Warranty | 3 Years |
| Form Factor | ATX |
| Chipset | B850 |
| Socket | AM5 |
| CPU Type | Ryzen 9000,Ryzen 8000,Ryzen 7000 |
| Max Memory | 256 GB |
| Memory Speed | up to 8400+ |
| Platform | AMD |
| Graphics Port | 1x HDMI |
| Memory Feature | 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 Brand Website |
| Expansion Slots | 3x PCI-E x16 slot PCI_E1 Gen PCIe 5.0 supports up to x16 (From CPU) PCI_E2 Gen PCIe 3.0 supports up to x1 (From Chipset) PCI_E3 Gen PCIe 4.0 supports up to x4 (From Chipset) PCI_E1 slot • Supports PCIe 5.0 x16 (For Ryzen™ 9000/ 7000 Series processors) • Supports PCIe 4.0 x8 (For Ryzen™ 8700/ 8600/ 8400 Series processors) • Supports PCIe 4.0 x4 (For Ryzen™ 8500/ 8300 Series processor) |
| Channel Supported | Dual Channel |
| Wireless Networking | WiFi 7,Bluetooth 5.4 |
| Back Panel I/O Ports | Clear CMOS Button USB 10Gbps Type-A USB 5Gbps Type-A USB 2.0 5G LAN Wi-Fi / Bluetooth Audio Connectors Flash BIOS Button HDMI™ USB 10Gbps Type-C USB 10Gbps Type-C USB 10Gbps Type-A |
| Internal I/O Connector | 1x Power Connector(ATX_PWR) 2x Power Connector(CPU_PWR) 1x Power Connector(PCIE_PWR 8pin) 1x CPU Fan 1x Combo Fan (Pump_Sys Fan) 6x System Fan 1x EZ Conn-header (JAF_2) 2x Front Panel (JFP) 1x Chassis Intrusion (JCI) 1x Front Audio (JAUD) 3x Addressable V2 RGB LED connector (JARGB_V2) 1x RGB LED connector(JRGB) 1x TPM pin header(Support TPM 2.0) 4x USB 2.0 ports 4x USB 5Gbps Type A ports 1x USB 20Gbps Type C ports |
