MSI B450M PRO-M2 MAX w/ DDR4 2666, 7.1 Audio, Gigabit LAN, PCI-E x16

MX78789 B450M PRO-M2 MAX w/ DDR4 2666, 7.1 Audio, Gigabit LAN, PCI-E x16
MX78789 B450M PRO-M2 MAX w/ DDR4 2666, 7.1 Audio, Gigabit LAN, PCI-E x16 MX78789 B450M PRO-M2 MAX w/ DDR4 2666, 7.1 Audio, Gigabit LAN, PCI-E x16 MX78789 B450M PRO-M2 MAX w/ DDR4 2666, 7.1 Audio, Gigabit LAN, PCI-E x16 MX78789 B450M PRO-M2 MAX w/ DDR4 2666, 7.1 Audio, Gigabit LAN, PCI-E x16

Product Info

MSI's B450M Pro M2 MAX:

The AM4 Motherboard Inspired by Architectural Design, Maximized with Core Boost, DDR4 Boost, Turbo M.2 and More...

  • Supports AMD® Ryzen™ Series Socket AM4 Processors
  • Supports DDR4 Memory up to DDR-3466+ Overclocked RAM
  • Turbo M.2: Running at PCI-E Gen3 x4 maximizes NVMe SSDs
  • DDR4 Boost: Advanced technology delivers pure data signals for the best performance and stability
  • Audio Boost: Reward your ears with studio grade sound quality
  • EZ Debug LED: Easiest way to troubleshoot
  • X-Boost: Software that auto-detects and allows you to boost the performance of any storage or USB device
  • Core Boost: With premium layout and fully digital power design to support more cores and provide better performance
  • PCI-E Steel Armor: Protecting VGA cards against bending and EMI Interference


  1. Keyboard & Mouse Combo PS/2 port

  2. DVD-D & VGA ports

  3. HDMI port

  4. USB 2.0 Ports

  5. USB 3.2 Gen1 Ports

  6. USB 3.2 Gen 1 & LAN Port

  7. HD Audio Connectors

  8. DDR4 Boost: Optimized traces and isolated memory circuitry

  9. Turbo M.2: Delivering Speeds Up to 32Gb/s using PCI-e Gen3 x4

  10. PCI-E Steel Slot: Protecting VGA cards against bending

  11. Heavy Plated Heatsinks: Heatsink designed for maximum cooling

  12. Audio Boost: Reward your ears with studio grade sound quality


MSI motherboards feature tons of convenient and smart design, such as convenient pin-header keep out zone, friendly SATA & USB location and so on, so DIY users can pick and choose any gaming rig they want.


Cooling your PC is essential for reliable performance. MSI motherboards feature excellent power design with solid and heavy heatsink. We've made sure to include enough fan headers with full control to allow you to cool your system any way you want.


MSI motherboards feature tons of convenient and smart design for DIY users, countless system tuning and troubleshooting tools are at your disposal to push your system to new heights and satisfy even the most demanding tweaker while making it easy to install.


Every MSI motherboards are certified by a strict mechanic that feature convenient pin-header keep out zone, friendly SATA & USB location for compatibility with the widest range of components and devices...


With years of experience in creating performance enhancing tools that are easy to use, only the highest quality applications are at your disposal. Use these tools to get the most out of your motherboard and achieve victory when gaming.

Moreover, we made sure our BIOS contains all the latest options and is easy to use for everyone. The extensive features let you fine-tune your system to deliver reliable maximum performance.



MSI motherboards feature the latest solutions for Gamers and Prosumers. CPU and memory enhancements and fast transfer speeds are ready for the battlefield.


High quality materials and smart fan optimizations contribute to cooling all essential components, which is key to making your system run stable while delivering the best performance.


Optimized layout design and an isolated memory circuit ensures solid stability and performance. You never have to worry about your system crashing during games.


MSI motherboards support the latest standards, which allows users to connect ultra-fast storage devices. Start games faster, load levels faster and have a real advantage over your enemies.


MSI motherboards provide the most fascinating in-studio advantages, designed to satisfy any professional workflow. Elevate your listening pleasure and network connection with MSI Audio & LAN. Enjoy extreme sound quality and uninterrupted online experience.


Reward your ears with studio grade sound quality. MSI Audio Boost delivers the highest sound quality through the use of premium quality audio components. This lets you enjoy breathtaking, studio quality sound to create the most immersive sound experience.



Every MSI Motherboard is built to match different tastes and favors. MSI also adopts the modern style to design the heatsink through huge surface and sleek but simple cuts in order to make the heatsink and appearance looks ripped and powerful.

Combined with neutral color, such as black, grey and silver, as the main background, MSI motherboard can perfect fit different RGB LED effects and strongly shows the gamers tunes.


PRO Series motherboards combine stable functionality and high quality assembly into business solutions. Designed to satisfy professional workflow, PRO Series motherboards make life easier for businesses and offices.


MSI is no stranger to building high-performance Motherboards. Their R&D and Engineering Teams review countless designs, evaluated a wide selection of high quality components, and develop products for reliability; even under extreme conditions.


Using only the finest quality components and integrating the latest technological innovations delivers the best possible professional experience. Rigorous quality testing under the most extreme conditions ensures a super reliable, long-lasting and high performance motherboard.

Additional Information:

Visit the Manufacturer Web Page for Full Details

Download the Manufacturer Specification Sheet


I/O Panel


System Requirements

This Motherboard matches the following hardware:

  • Windows® 10 / 7, 64 bit
  • Supports AMD® Ryzen™ series processors for Socket AM4
  • DDR4 RAM Kits


CPU Support Supports AMD AM4 Processors:
3rd, 2nd and 1st Gen AMD® Ryzen™ Processors with / without Radeon™ Vega Graphics

2nd Gen AMD® Ryzen™ with Radeon™ Graphics Processors

Athlon™ with Radeon™ Vega Graphics Desktop Processors
CPU Socket AMD Socket AM4
Chipset AMD® B450 Chipset
Memory 2x DDR4 DIMM Slots, 32GB Maximum (2x 16GB)
Supports Stock Clocked RAM up to DDR4-2666

AMD Ryzen™ 3rd Gen CPUs: Supports Overclocked RAM up to DDR4-4133 in A-XMP OC Model

Other AMD CPUs: Overclocked RAM up to DDR4-3466 in A-XMP OC mode

Dual channel memory architecture

Supports ECC UDIMM memory (in non-ECC mode only)
Expansion Slots 1x PCIe 3.0 x16 slot:
Supports PCIe x16 with AMD® Ryzen™ 3rd, 2nd and 1st Gen Processors
Supports PCIe x8 with AMD® Ryzen™ Processors w/ Radeon Vega or Radeon™ Graphics
Supports PCIe x4 with AMD® Athlon™ Processors w/ Radeon™ Vega Graphics

2x PCIe 2.0 x1 slots

Multi-GPU Support Not supported by 1x PCIe x16 Card Slot
Display Interface
(With Compatible CPU*)
Rear panel Video ports not supported by Ryzen™ CPUs without integrated Radeon™ Graphics

1x VGA port up to 2,048 x 1,280 @ 60Hz*
1x DVI-D port up to 1,920 x 1,200 @ 60Hz*
1x HDMI™ port up to 4,096 x 2,160 @ 30Hz*

Maximum shared memory of 2,048 MB
* Only supported by Ryzen™ Processors with Radeon™ Vega Graphics, 2nd Gen AMD Ryzen™ Processors with Radeon™ Graphics and Athlon™ Processors with Radeon™ Vega Graphics
Storage AMD® B450 Chipset:

4x SATA 6Gb/s ports w/ RAID 0, 1 & 10

1x M.2 PCIe 3.0 / SATA III (Key M) 2242 / 2260 / 2280 Slot:
1x PCIe 3.0 x4 Slot / SATA III w/ AMD Ryzen™ Processors, Ryzen™ Processors with Radeon™ Vega Graphics & 2nd Gen AMD Ryzen™ Processors with Radeon™ Graphics
1x PCIe 3.0 x2 / SATA III Slot w/ with AMD® Athlon™ Processors w/ Radeon™ Vega Graphics
LAN Realtek® 8111H Chipset:
1x Gigabit RJ45 LAN port
Audio Realtek® ALC887 Codec:
8-Channel 7.1 High Definition Audio
3x 3.5mm Rear Audio Jacks
USB Back Panel Ports:
4x USB 3.2 Gen1 Type-A (5Gbps) ports on back panel
2x USB 2.0 (480Mbps) ports on back panel

Internal Connectors:
2x USB 3.2 Gen1 (5Gbps) ports via internal USB connector
4x USB 2.0 (480Mbps) ports via 2x internal USB connectors

Back Panel I/O 1x PS/2 Keyboard port
1x PS/2 Mouse port
4x USB 3.1 Gen1 Type-A (5Gbps) ports
2x USB 2.0 Type-A (480Mbps) ports
1x HDMI™ port
1x DVI-D port
1x D-Sub VGA port
1x RJ45 Gigabit LAN port
3x 3.5mm Audio jacks
Internal I/O Connectors 1x 24-pin ATX Main Power connector
1x 8-pin ATX 12V power connector
4x SATA 6Gb/s connectors
2x USB 2.0 (480Mbps) connectors (supports 4x USB 2.0 ports)
1x USB 3.2 Gen1 (5Gbps) connector (supports 2x USB 3.1 Gen1 ports)
1x 4-pin CPU Fan connector
1x 4-pin System Fan connector
1x Front panel Audio connector
2x Front panel connectors
1x TPM module connector
1x Chassis Intrusion connector
1x Serial port connector
1x LED Strip connector
1x Clear CMOS jumper
Form Factor mATX Form Factor
Dimensions (LxW) 244 x 206mm
Weight N/A