MSI B550-A PRO AMD Socket AM4 ATX HDMI/DisplayPort Dual M.2 USB 3.2 CMotherboard
  • MSI B550-A PRO AMD Socket AM4 ATX HDMI/DisplayPort Dual M.2 USB 3.2 CMotherboard

    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 Gen4 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 PCI-E slots. Supports 2-Way AMD Crossfire
    Dragon Center: A brand new software which integrates all MSI exclusive tools with user friendly user interface.

    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.

    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 in full speed with MSI motherboards.

    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.

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

    • Specification

      Supports AM4 socket 3rd Gen AMD Ryzen processors, and future AMD Ryzen processors with BIOS update.

      AMD B550 Chipset

      4x DDR4 memory slots, support up to 128GB 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+ MHz by A-XMP OC MODE
      1DPC 1R Max speed 4800 MHz
      1DPC 2R max speed 3866 MHZ
      2DPC 1R max speed 4000 MHZ
      2DPC 2R max speed 3600 MHZ
      Dual channel memory architecture
      Supports non-ECC UDIMM memory
      Supports ECC UDIMM memory (non-ECC mode)
      Supports un-buffered memory

      Expansion Slot
      1x PCIe 4.0/ 3.0 x16 slot (PCI_E1) 1
      1x PCIe 3.0 x16 slot (PCI_E3), supports x4 speed 2
      2x PCIe 3.0 x1 slots

      Supports 2-Way AMD CrossFire Technology

      Onboard Graphics
      1x HDMI port, supports a maximum resolution of 4096x2160 @24Hz 1
      1x DisplayPort, supports a maximum resolution of 4096x2160 @60Hz 1
      Maximum shared memory of 16GB

      6x SATA 6Gb/s ports
      2x M.2 slots (Key M)
      M2_1 slot (from AMD Processor)
      Supports PCIe 4.0/ 3.0 x4 1
      Supports SATA 6Gb/s
      Supports 2242/ 2260/ 2280/ 22110 storage devices
      M2_2 slot (from AMD B550 chipset)
      Supports PCIe 3.0x4
      Supports 2242/ 2260/ 2280 storage devices

      Supports RAID 0, RAID 1 and RAID 10 for SATA storage devices
      Supports RAID 0 and RAID 1 for M.2 NVMe storage devices

      AMD B550 Chipset
      3x USB 3.2 Gen 1 5Gbps ports (1 Type-C internal connector, and 2 ports are available through the internal USB 3.2 Gen 1 5Gbps connector)
      8x USB 2.0 ports (4 Type-A ports on the back panel, 4 ports through the internal USB 2.0 connectors)
      AMD Processor
      2x USB 3.2 Gen 2 10Gbps ports (1 Type-C port and 1 Type-A port on the back panel)
      2x USB 3.2 Gen 1 5Gbps Type-A ports on the back panel

      7.1-Channel High Definition Audio

      1x Realtek 8111H Gigabit LAN controller

      Internal Connectors
      1x 24-pin ATX main power connector
      1x 8-pin ATX 12V power connector
      6x SATA 6Gb/s connectors
      2x M.2 slots (M-Key)
      1x USB 3.2 Gen 1 5Gbps Type-C port
      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 water-pump fan connector
      6x 4-pin system fan connectors
      1x Front panel audio connector
      2x System panel connectors
      1x Chassis Intrusion connector
      1x 4-pin RGB LED connector
      2x 3-pin RAINBOW LED connectors
      1xTPM module connector
      1x Clear CMOS jumper

      Back Panel Ports
      Keyboard / Mouse
      HD Audio Connectors
      Flash BIOS Button
      USB 2.0
      USB 2.0
      USB 3.2 Gen 1 5Gbps Type-A
      USB 3.2 Gen 2 10Gbps Type-A+C

      ATX Form Factor
      12 in. x 9.6 in. (30.5 cm x 24.4 cm)