B550M PRO

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

See supported 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

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

Expansion Slot

• 1x PCIe x16 slot (PCI_E2)
  • B550M PRO supports PCIe 4.0/3.0 ¹
• 2x PCIe 3.0 x1 slots

1. The supported specification depends on installed processor.

Onboard Graphics

• 1x VGA port, supports a maximum resolution of 2048x1536@50Hz, 2048x1280@60Hz, 1920x1200@60Hz²
• 1x HDMI 1.4, supports a maximum resolution of 4096x2160@60Hz ¹²
  Support for HDMI™ 1.4 version, HDCP 1.4 & 2.3
• 1x DisplayPort, supports a maximum resolution of 4096x2160 @60Hz²
• Maximum shared memory of 16GB

1. Graphics specifications may vary depending on the CPU installed.
2. Available for the processor with integrated graphics.

Storage

AMD B550 Chipset

• 4x SATA 6Gb/s ports
• 1x M.2 slot (Key M) (from AMD Processor)
  • B550M PRO Supports PCIe 4.0/ 3.0 x4 ¹
  • 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

USB

Audio

Realtek^® ALC892/ALC897 Codec

• 7.1-Channel High Definition Audio

LAN

• 1x Realtek^® RTL8111H LAN controller

Internal connectors

• 1x 24-pin ATX main power connector
• 1x 8-pin ATX 12V power connector
• 4x SATA 6Gb/s connectors
• 1x Serial port connector
• 1x M.2 slot (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 connector
• 1x Front panel audio connector
• 2x System panel connectors
• 1x Chassis Intrusion connector
• 1x 4-pin RGB LED connector
• 1x 3-pin RAINBOW LED connector
• 1x TPM module connector
• 1x Clear CMOS jumper

Back panel ports

Dimensions

• M-ATX Form Factor
• 9.6 in. x 8.3 in. (24.4 cm x 21 cm)

MOUNTING

6 mounting holes

Box content

1. MSI^® does not guarantee the risks or damages caused by changing the cover.
2. These pictures are for reference only and may vary without notice.