By Engage Gaming



Featuring heavy plated heat sinks and fierce looks, MSI ARSENAL GAMING motherboards are packed with gaming features for a refined gaming experience.



Customize and set up your own color scheme with MSI Mystic Light utility. Select the available colors from the palette to match your system style. Bored of the same colors? Simply change the complete look of your system in 1 second!



Cooling your PC is essential for reliable performance. We've made sure to include enough fan headers with full control to allow you to cool your system any way you want.



Integrating the very best of cutting edge technologies on MSI hardware provides a smooth VR ride. Through joint efforts with major VR brands, combined with unique MSI features geared to VR, MSI brings gamers and VR professionals a vivid and realistic experience in which content truly comes alive.






  • Supports AMD Ryzen™ 1st and 2nd Generation/ Ryzen™ with Radeon™ Vega Graphics Processors for Socket AM4
  • Supports DDR4 Memory, up to 3466(OC) MHz
  • Extended Heatsink Design: MSI extended PWM and enhanced circuit design ensures even high-end processors to run in full speed.
  • Lightning Fast Game experience: 1x TURBO M.2, AMD Turbo USB 3.1 GEN2, Store MI technology
  • Core Boost: With premium layout and fully digital power design to support more cores and provide better performance.
  • DDR4 Boost: Advanced technology to deliver pure data signals for the best gaming performance and stability.
  • MULTI-GPU: With PCI-E STEEL ARMOR slot. Supports 2-Way AMD Crossfire™
  • Mystic Light and Mystic Light Sync: 16.8 million colors / 10 effects in one click. Synchronize RGB strips and other RGB solutions for customization.
  • Audio Boost: Reward your ears with studio grade sound quality for the most immersive audio experience
  • BIOS FLASHBACK+: Simply use a USB key to flash any BIOS within seconds, without installing a CPU, memory or graphics card.
  • In-Game Weapons: Game Boost, GAMING Hotkey, X-Boost
  • EZ Debug LED: Easiest way to troubleshoot.



Model Name B450M MORTAR

CPU Support Supports AMD®

 Ryzen™ 1st and 2nd Generation/ Ryzen™

with Radeon™ Vega Graphics Processors for Socket AM4

CPU Socket Socket AM4

Chipset AMD®

 B450 Chipset

Graphics Interface 1 x PCI-E 3.0 x16 slot + 1 x PCE-E 2.0 x16 slot. Support 2-

way CrossFire

Display Interface HDMI, DisplayPort - Requires Processor Graphics

Memory Support 4 DIMMs, Dual Channel DDR4-3466

Expansion Slots 2 x PCI-E x1 slots

Storage 2 x M.2 slots, 4 x SATA 6Gb/s

USB ports 2 x USB 3.1 (Gen2) + 6 x USB 3.1 (Gen1) + 6 x USB 2.0

LAN 10/100/1000Mbps LAN

Audio 8-Channel(7.1) HD Audio with Audio Boost


  • Package Contents:
    • Motherboard
    • Driver Disk
    • User Manual
    • Quick Installation Guide
    • IO Shield
    • 2 x SATA Data cables
    • Case Badge
    • VIP card
    • M.2 Screw x2
  • Keywords:
    • Motherboard
    • AM4
    • DDR4
    • PCIe
    • M.2
    • USB 3.1
    • HDMI
    • Micro ATX
  • Product Width:244mm
  • Product Length:244mm
  • Package Width:27.5cm
  • Package Length:28cm
  • Package Height:6.5cm