Premium Thermal Solution
MSI extended heatsink and enhanced circuit design ensures even high-end processors to run in full speed.
Full Fan Control
4x fan headers automatically detect fans running in DC or PWM mode for optimal tuning of fan speeds and silence.
Pump Fan Support
Control watercooling pump speeds for best flow and noise control.
Featuring the TURBO USB 3.2 Gen 2 10Gbps, with reversible Type-c connector.
The fully isolated DDR circuit to deliver pure data signals for the best gaming and overclocking performance.
PCIe Steel Armor
Protecting VGA cards against bending and EMI for better performance, stability and strength.
Flash BIOS Button
Simply use a USB key to flash any BIOS within seconds, without installing a CPU, memory or graphics card.
Reward your ears with studio grade sound quality for the most immersive gaming experience.
Highest quality component digital power IC makes sure your system runs smoothly under the most extreme conditions.
Core Boost Technology
With premium layout design, that is ready for unleashing the maximum performance.
Thermal Solution for More Cores and Higher Performance
With more cores’ processors, thermal and power design is more important to make sure the temperature keeps lower. MSI extended PWM heatsink and enhanced circuit design ensure even high-end CPU to run in full speed with MSI motherboards.
Extreme Storage Performance
Enjoy a blazing fast system boot up and insanely quick loading of applications and data. Delivering speeds up to 32Gb/s per device using Gen3 x4, Turbo M.2 is over 5 times faster than a regular SATA III connection!
Maximise Your USB Device Performance
Transfer your favorite games, music and movies over USB faster than ever. MSI offers a wide variety of options to connect and boost your USB 3.2 Gen 2 devices, delivering lightning-fast transfer speeds!
Easy BIOS Recovery with Flash BIOS Button
Run into trouble when updating your BIOS? Simply flash the old BIOS version back and continue gaming within minutes with Flash BIOS Button. Flash BIOS Button even works without a CPU, memory or graphics card installed!
• STEP 1: No CPU/DDR/VGA required.
• STEP 2: Connect 24-pin & CPU power.
• STEP 3: Insert dongle with BIOS file.
• STEP 4: Use Flashback hotkey/button.
Customise Your Gaming Rig
Personalise your PC with 16.8 million colours and 10 effects through Mystic Light RGB LED. Controlled in one click with the Mystic Light APP or a mobile device.
• Customise colours.
• Customise effects.
Core Boost technology combines MSI’s premium layout and digital power design which allows for faster and undistorted current delivery to the CPU at pin-point precision. This creates the perfect conditions for multi-core CPU while overclocking.
Unmatched Memory Performance
MSI motherboards are crammed with features to fuel your system’s memory with more speed, higher overclockability and increased stability. Optimised traces and a fully isolated memory circuitry ensures perfect stability and performance, so you never have to worry about your system crashing.
Multiple GPU Supports and Steel Armor
B450 TOMAHAWK MAX II supports multiple GPU solution. Optimal PCI-Express slot placement allows for better fitting and airflow. That way, you can enjoy the best graphics at the highest framerate jumping from your screen when running an AMD® CrossFire™ setup Steel Armor has more solder points on the PCB for more strength and protects the PCI-Express signals against electromagnetic interference for a stutter-free user experience.
Amplify Your Game with Audio Boost
Like a dedicated sound card, Audio Boost offers a HD audio processor, dedicated amplifier and high quality audio capacitors, all physically isolated from the rest of the motherboard circuitry to ensure the purest audio signal to locate enemies with pin-point accuracy.
• Isolated Audio with Line.
• High Quality Audio Capacitors.
Your In-Game Advantage
Outsmart and outperform your opponents in-game using an array of unique MSI GAMING tools. Clever hardware & software tools, created to keep you one step ahead of the competition and boost your skills.
• Gaming Hotkey.
• Gaming Device port.
Features• Turbo M.2.
• AMD Turbo USB 3.2 Gen 2.
• Extended Heatsink Design.
• Flash BIOS Button.
• Core Boost.
• DDR4 Boost.
• Audio Boost.
CPU Socket Socket AM4
CPU Brand AMD
Installed Processors (Max) 0 (1)
Supported Processor Manufacturer AMD
Supported Processors 1st, 2nd and 3rd Gen AMD Ryzen / Ryzen with Radeon Vega Graphics and 2nd Gen AMD Ryzen with Radeon Graphics/ Athlon with Radeon Vega Graphics Desktop Processors
64-bit Support Yes
Rear Panel I/O Ports
USB Ports 1 x USB 3.1 Type-C1 x USB 3.1 Type-A2 x USB 3.02 x USB 2.0
HDMI Port 1 x HDMI 2.1
Keyboard/Mouse Combo Port 1 x PS/2
RJ-45 Ports 1 x RJ-45
Digital Port 1 x DVI-D DL
Audio Line In Ports 1 x 3.5mm Jack
Audio Line Out Ports 4 x 3.5mm Jacks
Microphone In Port 1 x 3.5mm Jack
Internal I/O Connectors
SATA Connectors 6 x SATA III
USB Connectors 1 x USB 3.0 header (supports 2 ports)2 x USB 2.0 headers (supports 4 ports)
Front Panel Connectors 1 x Front Panel1 x Front Audio
Cooling Fan Support 1 x CPU fan header1 x Water Pump fan header4 x System fan headers
Serial Connectors 1 x COM header
Chassis Intrusion Connector 1 x Chassis Intrusion header
TPM Header 1 x TPM header
Power Connector Port 1 x 20 4-pin ATX
Other Connectors 1 x M.2, Socket 3, M Key (Type 2242/2260/2280/22110)2 x 5050 12V RGB LED headers
Memory Bus Speed 1866/ 2133/ 2400/ 2667/ 2800/ 2933/ 3000/ 3066/ 3200/ 3466/ 4000/ 4133 MHz
Memory Type DDR4
Maximum RAM 128 GB
Memory Slot 4 x DIMM
Chipset Manufacturer AMD
RAID Supported Yes
RAID Format RAID 0, 1, 10
SATA Supported Yes
Number of PCI Express Slots 1 x PCI Express 3.0 x161 x PCI Express 2.0 x16 (@ x4)3 x PCI Express 2.0 x1
Integrated Graphics Supported Yes
Integrated Sound Realtek ALC892/ALC897
Warranty 3 Years
Integrated Network Realtek 8111H
Network Speeds Supported Up to 1 Gbps
Wireless LAN No
Operating Systems Supported Microsoft Windows 10 64-bit
Jumpers 1 x Clear CMOS
Software Included (may be trial or restricted) Yes
SLi/Crossfire Features 2-Way AMD CrossFire Technology
Form Factor ATX Motherboard
In The Box MSI B450 TOMAHAWK MAX II MotherboardUser Guide2 x SATA CablesQuick Installation GuideProduct Registration CardDriver DVDMSI Case BadgeI/O Shield
Width 305 mm
Length 244 mm
RGB Header Type 4-Pin RGB
Addressable RGB No
Wireless Network No
Memory Channel Dual
On-board Audio Type 7.1
Number of SATA Ports 6 port(s)
Number of USB Ports 6 port(s)
SATA III Support Yes
USB 3.0 Support Yes
Multi GPU Support ATi CrossFire
VGA Connection No
DVI Connection Yes
HDMI Connection Yes
DisplayPort Connection No
Motherboard Form Factor ATX
Motherboard Power Connectors 4 4-Pin
Motherboard Chipset AMD B450
Motherboard Model MSI B450 TOMAHAWK MAX II
USB 3.1 Support Yes
Internal USB3.0 Header Yes
M.2 Support Yes
On-board RGB Control MSI Mystic Sync
Memory Speed 4133 MHz