Msi B550M-A Pro Motherboard

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  • 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.  

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MSI B550M-A PRO MOTHERBOARD

MSI B550M-A PRO MOTHERBOARD

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.

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.

EZ DEBUG LED

Run into trouble? Onboard LEDs for key components will indicate the source of the problem so you know exactly where to look to get up and running again.

XL CLIP

The enlarged PCI-E clip helps you swap or remove your devices easier. Keep the PCI-E slot stronger and safer.

FORTIFY YOUR SYSTEM WITH PCI-E STEEL ARMOR

MSI PCI Express Steel Armor slots are secured to the motherboard with extra solder points and support the weight of heavy graphics cards. When every advantage in games counts, Steel Armor shields the point of contact from electromagnetic interference.

ULTIMATE MOTHERBOARD PROTECTION

Double ESD protection doubles up the grounding layer around the mounting holes, preventing static discharge surges from damaging the motherboard.

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.

LIGHTNING GEN 4 M.2

Utilizing 3rd Gen Ryzen processors, MSI B550 motherboards feature latest Lightning Gen 4 M.2 which is the fastest onboard storage solution on the market with up to 64 Gb/s transfer speed.

PCB WITH 2OZ THICKENED COPPER

An enhanced PCB design with 2oz thickened copper increases conductivity, improving heat dissipation and performance reliability especially during overclocking.

LIGHTNING GEN 4 PCI-E

MSI lightning Gen 4 PCI-E is the latest and the fastest PCI-E data transfer solution with 64GB/s of unidirectional transfer bandwidth that has doubled compared to its previous generation. PCIe 4.0 maintains both backward and forward compatibility with older and newer specifications. Optimized by steel armor design and server grade PCB, you can enjoy next-gen devices without any compromise.

A HUGE STEP OF DDR PERFORMANCE

MSI OC LAB does not merely work hard on extreme overclocking. Compared to B450 motherboard memory A-XMP profile, MSI does have great improvement on performance and efficiency for B550 motherboards. Easy to enable A-XMP profile with auto power settings to get the best memory speed and stability.

CORE BOOST

Core Boost technology combines MSI’s premium layout and optimized power design which allows for faster and undistorted current delivery to the CPU at pin-point precision. Not only supporting multi-core CPU, also creating the perfect conditions for your CPU overclocking.

SKU: B550M-A PRO Category: Tags: ,
MOTHERBOARD CHIPSET

MOTHERBOARD FORM FACTOR

MOTHERBOARD SOCKET

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
    • 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
  1. Please refer www.msi.com for more information on compatible memory.

EXPANSION SLOT

  • 1x PCIe 3.0 x1 slot
  • 1x PCIe 4.0/3.0 x16 slot
  1. The supported specification depends on installed processor.

ONBOARD GRAPHICS

  • 1x HDMI 2.1 port, supports a maximum resolution of 4096×2160 @60Hz
  • 1x DVI-D port, supports a maximum resolution of 1920×1200@60Hz
  • Maximum shared memory of 16 GB
  1. Available for the processor with integrated graphics.
  2. Graphics specifications may vary depending on the CPU installed.

STORAGE

AMD B550 Chipset

  • 4x SATA 6Gb/s ports
  • 1x M.2 slot (Key M) (from AMD Processor)
    • Supports PCIe 4.0/ 3.0
    • Supports SATA 6Gb/s
    • Supports 2242/ 2260/ 2280 storage devices
  1. 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

  1. LAN port
  2. HDMI
  3. DVI-D
  4. Keyboard / Mouse
  5. USB 3.2 Gen 1 5Gbps Type-A
  6. USB 3.2 Gen 1 5Gbps Type-A
  7. USB 2.0 Ports
  8. Audio Connectors
A520M-A Pro

DIMENSIONS

  • Micro-ATX Form Factor
  • 9.3 in. x 7.9 in. (23.6 cm x 20 cm)

MOUNTING

8 mounting holes

Brand

MSI

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