Description
CPU
Supports AMD Ryzen™ 5000 & 3000 Series desktop processors (not compatible with AMD Ryzen™ 5 3400G & Ryzen™ 3 3200G) and AMD Ryzen™ 4000 G-Series desktop processors
CHIPSET
AMD B550 Chipset
MEMORY
- 2x DDR4 memory slots, support up to 64GB 1
- Supports DDR4 1866/ 2133/ 2400/ 2667/ 2800/ 2933/ 3000/ 3066/ 3200 MHz by JEDEC
- Supports DDR4 2667/ 2800 /2933 /3000 /3066 /3200 /3466 /3600/ 3733 /3866 /4000 /4133 /4266 /4400/ 4600+ MHz by A-XMP OC MODE
- 1DPC 1R max speed 4600 MHz
- 1DPC 2R max speed 3866 MHz
- Dual channel memory architecture
- Supports non-ECC UDIMM memory
- Supports ECC UDIMM memory (non-ECC mode)
- Supports un-buffered memory
- Please refer www.msi.com for more information on compatible memory.
EXPANSION SLOT
- 1x PCIe 3.0 x1 slot 1
- 1x PCIe 4.0/3.0 x16 slot
- The supported specification depends on installed processor.
ONBOARD GRAPHICS
STORAGE
AMD B550 Chipset
- 4x SATA 6Gb/s ports
- 1x M.2 slot (Key M) (from AMD Processor)
- Supports PCIe 4.0/ 3.0 1
- Supports SATA 6Gb/s
- Supports 2242/ 2260/ 2280 storage devices
- The supported specification depends on installed processor.
RAID
- Supports RAID 0, RAID 1 and RAID 10 for SATA storage devices
- Supports RAID 0 and RAID 1 for M.2 NVMe storage devices
USB
AMD B550 Chipset
- 2x USB 3.2 Gen 1 5Gbps ports are available through the internal USB 3.2 Gen 1 5Gbps connector
- 6x USB 2.0 ports (2 Type-A ports on the back panel, 4 ports through the internal USB 2.0 connectors)
AMD Processor
- 4x USB 3.2 Gen 1 5Gbps Type-A ports on the back panel
AUDIO
Realtek® ALC892/ALC897 Codec
- 7.1-Channel High Definition Audio
LAN
- 1x Realtek® RTL8111H Gigabit LAN controller
INTERNAL CONNECTORS
- 1x 24-pin ATX main power connector
- 1x 4-pin ATX 12V power connector
- 4x SATA 6Gb/s connectors
- 1x M.2 slots (M-Key)
- 1x USB 3.2 Gen 1 5Gbps connector (supports additional 2 USB 3.2 Gen 1 5Gbps ports)
- 2x USB 2.0 connectors (supports additional 4 USB 2.0 ports)
- 1x 4-pin CPU fan connector
- 1x 4-pin system fan connectors
- 1x Front panel audio connector
- 2x System panel connectors
- 1x Chassis Intrusion connector
- 1xTPM module connector
- 1x Clear CMOS jumper
BACK PANEL PORTS
- LAN port
- HDMI
- DVI-D
- Keyboard / Mouse
- USB 3.2 Gen 1 5Gbps Type-A
- USB 3.2 Gen 1 5Gbps Type-A
- USB 2.0 Ports
- Audio Connectors
DIMENSIONS
- Micro-ATX Form Factor
- 9.3 in. x 7.9 in. (23.6 cm x 20 cm)
MOUNTING
8 mounting holes
BOX CONTENT
- MSI® does not guarantee the risks or damages caused by changing the cover.
- These pictures are for reference only and may vary without notice.
PRO series helps users work smarter by delivering an efficient and productive experience. Featuring stable functionality and high-quality assembly, PRO series motherboards provide not only optimized professional workflows but also less troubleshooting and longevity.
B550M-A PRO
BUSINESS ELEGANCE
4K Support
Onboard HDMI supports up to 4K UHD resolution.
Audio Boost
Reward your ears with studio grade sound quality for the most immersive gaming experience.
2oz Thickened Copper PCB
An enhanced PCB design improves heat dissipation and performance reliability.
Core Boost
With premium layout and digital power design to support more cores and provide better performance.
DDR4 Boost
The fully isolated DDR circuit to deliver pure data signals for the best performance and stability.
Lightning Gen 4 Solution
The latest Gen4 PCI-E and M.2 solution with up to 64GB/s bandwidth for maximum transfer speed.
B550M-A PRO
BUSINESS ELEGANCE
4K Support
Onboard HDMI supports up to 4K UHD resolution.
Audio Boost
Reward your ears with studio grade sound quality for the most immersive gaming experience.
2oz Thickened Copper PCB
An enhanced PCB design improves heat dissipation and performance reliability.
Core Boost
With premium layout and digital power design to support more cores and provide better performance.
DDR4 Boost
The fully isolated DDR circuit to deliver pure data signals for the best performance and stability.
Lightning Gen 4 Solution
The latest Gen4 PCI-E and M.2 solution with up to 64GB/s bandwidth for maximum transfer speed.
B550M-A PRO
BUSINESS ELEGANCE
4K Support
Onboard HDMI supports up to 4K UHD resolution.
Audio Boost
Reward your ears with studio grade sound quality for the most immersive gaming experience.
2oz Thickened Copper PCB
An enhanced PCB design improves heat dissipation and performance reliability.
Core Boost
With premium layout and digital power design to support more cores and provide better performance.
DDR4 Boost
The fully isolated DDR circuit to deliver pure data signals for the best performance and stability.
Lightning Gen 4 Solution
The latest Gen4 PCI-E and M.2 solution with up to 64GB/s bandwidth for maximum transfer speed.
B550M-A PRO
BUSINESS ELEGANCE
4K Support
Onboard HDMI supports up to 4K UHD resolution.
Audio Boost
Reward your ears with studio grade sound quality for the most immersive gaming experience.
2oz Thickened Copper PCB
An enhanced PCB design improves heat dissipation and performance reliability.
Core Boost
With premium layout and digital power design to support more cores and provide better performance.
DDR4 Boost
The fully isolated DDR circuit to deliver pure data signals for the best performance and stability.
Lightning Gen 4 Solution
The latest Gen4 PCI-E and M.2 solution with up to 64GB/s bandwidth for maximum transfer speed.
B550M-A PRO
BUSINESS ELEGANCE
4K Support
Onboard HDMI supports up to 4K UHD resolution.
Audio Boost
Reward your ears with studio grade sound quality for the most immersive gaming experience.
2oz Thickened Copper PCB
An enhanced PCB design improves heat dissipation and performance reliability.
Core Boost
With premium layout and digital power design to support more cores and provide better performance.
DDR4 Boost
The fully isolated DDR circuit to deliver pure data signals for the best performance and stability.
Lightning Gen 4 Solution
The latest Gen4 PCI-E and M.2 solution with up to 64GB/s bandwidth for maximum transfer speed.
USER FRIENDLY DESIGN
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. Makes it so easy to install your own motherboard without any issue.
COOLING
DESIGN
COMPATIBILITY
RELIABLE COMPONENTS
FULLY CONTROLLABLE IN BIOS AND SOFTWARE
MSI motherboards let you manage speeds and temperatures for all your system and CPU fans. Total Fan Control allows you check your primary system characteristics in a simplified graphical interface. You can also set up to 4 temperature targets for CPU and motherboard, which will adjust the fan speeds automatically.
CONNECTIVITY
The most important thing of DIY is expandability. MSI PRO series motherboards feature plenty possibility for prosumers’ need. Stable LAN, faster storage and USB transfer speed and other expandable connectors are ready to enlarge your flexibility.
STORAGE
USB
FAST AND FUTURE-READY STORAGE
MSI PRO series motherboards support all the latest storage standards, which allows users to connect any ultra-fast storage device. Higher efficiency makes your work easier.
1x
4x
EXPERIENCE MORE
MSI PRO series motherboards are designed to satisfy any professional workflow. Elevate your listening pleasure and enjoy extreme sound quality. Moreover, with years of experience in creating performance enhancing tools that are easy to use, only the highest quality applications are at your disposal. The extensive features let you fine-tune your system to deliver reliable maximum performance.
PERFORMANCE
AUDIO
BIOS & SOFTWARE
PCB WITH 2OZ THICKENED COPPER
An enhanced PCB design with 2oz thickened copper increases conductivity, improving heat dissipation and performance reliability especially during overclocking.
B550M-A PRO
- Supports AMD Ryzen™ 5000 & 3000 Series desktop processors (not compatible with AMD Ryzen™ 5 3400G & Ryzen™ 3 3200G) and AMD Ryzen™ 4000 G-Series desktop processors
- Supports DDR4 Memory, up to 4600(OC) MHz
- Lightning Fast Experience: PCIe 4.0, Lightning Gen4 x4 M.2
- Core Boost: With premium layout and digital power design to support more cores and provide better performance
- DDR4 Boost: Advanced technology to deliver pure data signals for the best performance and stability
- 2oz Thickened Copper PCB: An enhanced PCB design improves heat dissipation and performance reliability
- Audio Boost: Reward your ears with studio grade sound quality
- Dragon Center: A brand new software which integrates all MSI exclusive tools with user friendly user interface.
© AMD, and the AMD Arrow logo, Radeon, FreeSync, and combinations thereof are trademarks of Advanced Micro Devices, Inc. DirectX and Microsoft are registered trademarks of Microsoft Corporation in the US and other jurisdictions. PCI Express is a registered trademark of PCI-SIG Corporation. Vulkan and the Vulkan logo are trademarks of the Khronos Group Inc. Other product names are for identification purposes only and may be trademarks of their respective companies.
All images and descriptions are for illustrative purposes only. Visual representation of the products may not be perfectly accurate. Product specification, functions and appearance may vary by models and differ from country to country . All specifications are subject to change without notice. Please consult the product specifications page for full details.Although we endeavor to present the most precise and comprehensive information at the time of publication, a small number of items may contain typography or photography errors. Products may not be available in all markets. We recommend you to check with your local supplier for exact offers.
Additional information
| Weight | 2 kg |
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