MSI ATX motherboard MAG B850-TOMAHAWK MAX-WIFI II AM5 DSP0000043076

Features of the MSI MAG B850 TOMAHAWK MAX WIFI II
The MSI MAG B850 TOMAHAWK MAX WIFI II is an ATX gaming motherboard equipped with the AMD B850 chipset and AM5 socket, ready for AMD Ryzen™ 9000, 8000 and 7000 Series processors. It combines a powerful power delivery system, support for high-speed DDR5 memory, PCIe 5.0 connectivity, M.2 Gen5 storage, 5G LAN and Wi-Fi 7, providing a solid foundation for building gaming PCs and high-performance systems.
AMD AM5 platform ready for Ryzen
Thanks to the AMD B850 chipset and AM5 socket, this motherboard supports system configurations with different generations of AMD Ryzen™ processors. Its design is suited to both gaming setups and systems requiring extensive expandability and performance.

Chipset : AMD B850
Socket: AM5
Compatible with AMD Ryzen™ 9000, 8000 series and 7000
Format: ATX
Dimensions: 243.84 x 304.8 mm

14+2+1-phase power system
The MAG B850 TOMAHAWK MAX WIFI II features a 14+2+1-phase Duet Rail power system designed to handle high CPU loads. The 80 A Smart Power Stages, digital PWM controller and two 8-pin CPU power connectors provide stable power delivery in demanding configurations.

14 80 A Duet Rail phases with Smart Power Stage
2 SOC power phases
1 MISC power phase
Digital PWM controller
2 8-pin CPU power connectors
Core Boost and Memory Boost technologies
8-layer PCB with 2 oz copper and server-grade material

DDR5 memory up to 256 GB
Its four DDR5 UDIMM slots support a total capacity of up to 256 GB and dual-channel operation. The motherboard supports memory overclocking, AMD EXPO™ profiles and speeds of up to 8400+ MT/s in compatible configurations.

4 slots DDR5 UDIMM
Maximum capacity : 256 GB
Dual-channel DDR5
JEDEC speeds: 4800 to 5600 MT/s
Overclocking speeds: 5600 to 8400+ MT/s
Supports AMD EXPO™ and memory overclocking
Compatible with Non-ECC Un-buffered memory
Compatible with CUDIMM in Clock Driver Bypass mode

With Ryzen™ 9000 processors, the maximum indicated speed reaches 8400+ MT/s in 1DPC 1R configuration and up to 6400+ MT/s in 1DPC 2R, 2DPC 1R and 2DPC 2R configurations. Supported speeds may vary depending on the processor and memory configuration used.
PCIe 5.0 and Steel Armor II reinforced slot
The primary slot features PCIe 5.0 x16 and MSI Steel Armor II reinforcement, with additional solder points to improve resistance to the weight of large graphics cards. In addition, the EZ PCIe Release system makes it easier to install and remove the GPU.

PCI_E1: PCIe 5.0 x16 from CPU
PCI_E2: PCIe 3.0 up to x1 from chipset
PCI_E3: PCIe 4.0 up to x4 from chipset
Steel Armor II on the primary slot
EZ PCIe Release system

The primary slot configuration depends on the installed processor: it supports PCIe 5.0 x16 with Ryzen™ 9000 and 7000, PCIe 4.0 x8 with Ryzen™ 8700, 8600 and 8400, and PCIe 4.0 x4 with Ryzen™ 8500 and 8300.
Four M.2 slots with Gen5 storage
The motherboard has four M.2 connectors, including two slots capable of reaching PCIe 5.0 x4 with compatible processors. The EZ M.2 Shield Frozr II and EZ M.2 Clip II systems help keep drives cool and simplify tool-free installation.

M.2_1: up to PCIe 5.0 x4, 22110 and form factors 2280
M.2_2: up to PCIe 5.0 x4, 2280 and form factors 2260
M.2_3: up to PCIe 4.0 x2, 2280 and form factors 2260
M.2_4: up to PCIe 4.0 x4, 2280 and form factors 2260
2 Gen5 x4 slots with up to 128 Gbps
1 Gen4 x4 slot with up to 64 Gbps
1 Gen4 x2 slot with up to 32 Gbps
4 connectors SATA 6G
RAID 0, RAID 1 and RAID 10 support for M.2 NVMe drives

When a device is installed in the M.2_3 slot, PCI_E3 operates at x2 speed. PCI_E3 can be configured as x4 in the BIOS, but this option disables the M.2_3 slot.
Frozr Guard cooling
The Frozr Guard design combines large heatsinks, thermal pads and dedicated protection for M.2 drives. This system helps control the temperatures of the main components during extended use.

Extended Heatsink design
7 W/mK MOSFET thermal pads
Additional thermal pads for the chokes
EZ M.2 Shield Frozr II
Frozr Sync for cooling synchronization
Frozr Control via MSI Center
Compatible with Cooling Wizard and Frozr AI Cooling

Wi-Fi 7, Bluetooth 5.4 and 5 Gbps LAN
Network connectivity combines Realtek 8126VB 5G LAN and Wi-Fi 7, providing high-speed options for both wired and wireless connections. The Wi-Fi module installed in the M.2 Key-E slot operates on the compatible 2.4 GHz, 5 GHz and 6 GHz bands.

Realtek 8126VB 5G LAN
Wi-Fi 7 with IEEE 802.11 a/b/g/n/ac/ax/be
2.4 GHz, 5 GHz and 6 GHz bands
Channel width up to 320 MHz
Specified wireless speed of up to 5.8 Gbps
MU-MIMO TX/RX, MLO and support 4KQAM
Bluetooth ® 5.4
EZ Antenna with magnetic design

Availability of the 6 GHz band depends on the regulations in each country. The listed Wi-Fi 7 and Bluetooth® 5.4 features are ready for Windows® 11 version 24H2.
USB connectivity of up to 20 Gbps
The extensive USB connectivity allows you to connect peripherals, external drives and high-speed accessories. The front 20 Gbps USB Type-C port stands out, alongside several Type-A and Type-C ports available on the rear panel and via internal headers.

4 rear USB 2.0
4 front USB 2.0 ports
1 rear USB 5 Gbps Type-A port
4 front USB 5 Gbps Type-A ports
2 rear USB 10 Gbps Type-A ports
3 rear USB 10 Gbps Type-C ports
1 front USB 20 Gbps Type-C port

Audio Boost 5 with Realtek codec ALC4080
The Audio Boost 5 system with Realtek® ALC4080 codec delivers high-performance USB audio in up to 7.1-channel configuration, as well as high-resolution playback from the front panel and digital S/PDIF output.

Realtek codec ® ALC4080
High-performance 7.1-channel USB audio
Playback up to 32 bits / 384 kHz from the front panel
Optical S/PDIF output

HDMI 2.1 output with resolution up to 8K
For processors with integrated graphics, the motherboard features an HDMI™ 2.1 FRL output capable of reaching a specified maximum resolution of 8K at 60 Hz. Available graphics capabilities depend on the installed processor.

1 EXIT HDMI™ 2.1 FRL
Maximum resolution: 8K at 60 Hz
Available with processors equipped with integrated graphics

EZ DIY design for easy installation
MSI incorporates various EZ DIY solutions designed to simplify the installation and maintenance of the system’s main components, reducing the need for tools during assembly.

EZ M.2 Shield Frozr II with tool-free design
EZ M.2 Clip II for installing and removing SSDs
EZ PCIe Release for easy graphics card removal
EZ Antenna with magnetic system
4 EZ Debug LEDs
1 EZ Memory Detection LED

Internal connectors for cooling, RGB and expansion
The MAG B850 TOMAHAWK MAX WIFI II offers a wide selection of internal connections for fans, cooling pumps, RGB lighting, USB and other system components.

1 ATX_PWR connector
2 CPU_PWR connectors
1 8-pin PCIE_PWR connector
1 CPU fan connector
1 PUMP_SYS connector
6 system fan connectors
1 ARGB + fan header + USB 2.0 JAF_2
2 JFP front panel connectors
1 JCI intrusion detection connector
1 JAUD front audio connector
3 Addressable connectors V2 RGB LED JARGB_V2
1 JRGB RGB LED connector
1 TPM header compatible with TPM 2.0
2 BCLK frequency jumpers

Full rear panel and maintenance features
The rear I/O panel integrates the main network, audio, video and USB interfaces, as well as dedicated Clear CMOS and Flash BIOS buttons that make maintenance and updating easier.

Clear CMOS button
Flash BIOS button
USB 10 Gbps Type-A and Type-C
USB 5 Gbps Type-A
USB 2.0
Port LAN 5G
Wi-Fi and Bluetooth connections
Audio connectors
Optical S/PDIF output
HDMI™

Windows compatibility 11
The motherboard supports 64-bit Windows® 11, providing a modern platform ready for gaming PCs, home workstations and high-performance configurations based on AMD AM5.

Compatible operating system: 64-bit Windows® 11
Motherboard form factor: ATX
Dimensions: 243.84 x 304.8 mm
Volume (m ³): 0.0091