MSI B550-A PRO / Motherboard / ATX / Socket AM4 / AMD B550 / USB-C Gen2, USB-C Gen1, USB 3.2 Gen 1, USB 3.2 Gen 2 / Gigabit LAN / onboard graphics (CPU required) / HD Audio (8-channel) | 7C56-002R

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Product Code04:338290 EAN Code4719072733667 ManufacturerMSI CPU SocketSocket AM4


MSI B550-A PRO / Motherboard / ATX / Socket AM4 / AMD B550 / USB-C Gen2, USB-C Gen1, USB 3.2 Gen 1, USB 3.2 Gen 2 / Gigabit LAN / onboard graphics (CPU required) / HD Audio (8-channel) | 7C56-002R


PRO series helps users work smarter by delivering an efficient and productive experience. Featuring stable functionality and high-quality assembly, PRO series motherboard provides not only optimized professional workflows but also less troubleshooting and longevity.

MSI B550-A PRO / Motherboard | 7C56-002R

Special Features

  • Support for 3rd Gen AMD Ryzen processors and future AMD Ryzen processors with BIOS update
  • Supports DDR4 memory, up to 4400 (OC) MHz
  • Lightning-fast experience: PCIe 4.0, Lightning Gen 4 x4 M.2 with M.2 Shield Frozr, AMD Turbo USB 3.2 Gen 2
  • Premium thermal solution: extended heatsink design with additional choke thermal pad and 7W/mK pad, and M.2 Shield Frozr are built for high-performance system and non-stop works
  • Powerful design: Core Boost, Digital PWM IC, 2oz thickened copper PCB, Creator Genie, DDR4 Boost
  • Audio Boost: reward your ears with studio-grade sound quality
  • Multi-GPU: with steel armor PCIe slots
  • Supports 2-way AMD CrossFire

Product features

  • Turbo USB
    Featuring the Turbo USB 3.2 Gen 2 10Gbps with reversible Type-C connector.
  • DDR4 Boost
    The fully isolated DDR circuit with Interdigital Tabbed Routing to deliver pure data signals and improve signal reliability at high frequencies.
  • Lightning Gen 4 solution
    The Gen 4 PCI-E and M.2 solution with up to 64GB/s bandwidth for maximum transfer speed.
  • Flash BIOS button
    Simply use a USB key to flash any BIOS within seconds, without installing a CPU, memory, or graphics card.
  • Core Boost Technology
    Combining premium layout design, that is ready for unleashing the maximum performance.
  • Digital PWM
    The high-quality component digital power IC makes sure your system runs smoothly under most extreme conditions.
  • PCIe steel armor
    Protecting VGA cards against bending and EMI for better performance, stability, and strength.
  • 7W/mK thermal pad
    Premium 7W/mK thermal pad covered both MOSFET and chokes, provides better heat transfer to the heatsink.
  • M.2 Shield Frozr
    Strengthened built-in M.2 thermal solution. Keeps M.2 SSDs safe while preventing throttling, making them run faster.
  • Pump fan support
    Control water-cooling pump speeds for best flow and noise control.
  • Extended heatsink
    MSI extended PWM and enhanced circuit design ensures even high-end processors to run at full speed.
  • User-friendly design
    MSI motherboard features 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. It makes it so easy to install your own motherboard without any issue.
  • 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 with 7W/mK thermal pad ensures even high-end processors to run at full speed with MSI motherboards.
  • Connectivity
    The most important thing about DIY is expandability. MSI PRO Series motherboard features plenty of possibility for prosumers' needs. Stable LAN, faster storage, and USB transfer speed and other expandable connectors are ready to enlarge your flexibility.
  • Fast and future-ready storage
    MSI PRO Series motherboard supports all the storage standards, which allows users to connect any ultra-fast storage device. Higher efficiency makes your work easier.
  • Experience more
    MSI PRO Series motherboard is 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 high-quality applications are at your disposal. The extensive features let you fine-tune your system to deliver reliable maximum performance.
  • PCB with 2oz thickened copper
    An enhanced PCB design with 2oz thickened copper increases conductivity, improving heat dissipation and performance reliability especially during overclocking.

Product Specification

Product Type Motherboard - ATX
Chipset Type AMD B550
Processor Socket Socket AM4
Max Processors Qty 1
Compatible Processors Ryzen (supports 3rd Generation Ryzen and New Generation Ryzen with Radeon Graphics)
Max Size 128 GB
Technology DDR4
Bus Clock 2400 MHz, 1866 MHz, 2133 MHz, 2800 MHz, 3000 MHz, 2666 MHz, 2933 MHz, 3466 MHz (O.C.), 3733 MHz (O.C.), 3600 MHz (O.C.), 3866 MHz (O.C.), 4000 MHz (O.C.), 4133 MHz (O.C.), 4400 MHz (O.C.), 4266 MHz (O.C.), 3200 MHz, 3066 MHz
Supported RAM Integrity Check Non-ECC, ECC (operate in non-ECC mode)
Registered or Buffered Unbuffered
Features Dual channel memory architecture, supported ECC modules operate in non-ECC mode, A-XMP support
Max Allocated RAM Size 2 GB
Type HD Audio (8-channel)
Audio Codec Realtek ALC892
Compliant Standards High Definition Audio
Network Controller Realtek RTL8111H
Network Interfaces Gigabit Ethernet
Expansion Slots 1 x CPU ¦ 4 x DIMM 288-pin ¦ 1 x PCIe 4.0 x16 ¦ 1 x PCIe 3.0 x16 (x4 mode (auto turn-off if M.2 is occupied)) ¦ 2 x PCIe 3.0 x1
Storage Interfaces SATA-600 -connectors: 6 x 7pin Serial ATA - RAID 0 / RAID 1 / RAID 10 ¦ SATA-600 / PCIe 4.0 -connectors: 1 x M.2 - RAID 0 / RAID 1 ¦ PCIe 3.0 -connectors: 1 x M.2 - RAID 0 / RAID 1
Interfaces 1 x LAN (Gigabit Ethernet) ¦ 1 x audio line-in - mini-jack ¦ 1 x audio line-out - mini-jack ¦ 1 x microphone - mini-jack ¦ 1 x audio line-out (side surround) - mini-jack ¦ 2 x USB 3.2 Gen 1 ¦ 1 x USB 3.2 Gen 2 ¦ 1 x audio line-out (center/subwoofer) - mini-jack ¦ 1 x audio line-out (rear) - mini-jack ¦ 1 x USB-C Gen2 ¦ 1 x PS/2 keyboard / mouse ¦ 4 x USB 2.0 ¦ 1 x HDMI ¦ 1 x DisplayPort
Internal Interfaces 4 x USB 2.0 - header ¦ 2 x USB 3.2 Gen 1 - header ¦ 1 x USB-C Gen 1 - header ¦ 1 x audio - header
Power Connectors 24-pin main power connector, 8-pin ATX12V connector
Hardware Features AMD CrossFireX technology support, Debug LED, Double ESD Protection, 2oz Copper PCB, M.2 Shield FROZR, MSI Core Boost, MSI PCIe Steel Slot, MSI Mystic Light Sync
Included Accessories Case badge, I/O back cover
Cables Included 2 x Serial ATA cable
Software Included Drivers & Utilities
Width 30.5 cm
Depth 24.4 cm
Service & Support Limited warranty - 3 years

Features - MSI - 7C56-002R

CPU Socket
  • Socket AM4
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