MSI B550 GAMING GEN3 ATX AM4 motherboard

CPU

Supports AMD Ryzen™ 5000 Series, 5000 G-Series, 4000 G-Series, and 3000 Series processors Processor socket AM4

See supported processors

Chipset

AMD^® B550 Chipset

Memory

• 4x DDR4 memory slots, supporting up to 128GB ¹
  • Supports 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 4400 MHz
    • 1DPC 2R max speed 3733 MHz
    • 2DPC 1R max speed 3866 MHz
    • 2DPC 2R max speed 3466 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 Slots

• 2x PCIe x16 slots
  • PCI_E1 slot (From CPU)
    • Supports PCIE 3.0 x16
  • PCI_E4 ¹(From B550 chipset)
    • Supports PCIe 3.0 x4
• 4x PCIe x1 slots
  • PCI_E2, E3, E5 and E6 slots (From B550 chipset)
  • Supports PCIe 2.0 X1

1. PCI_E4 will run x1 speed when installing devices in PCI_E2/ PCI_E3/ PCI_E5 slot.

Multi-GPU

• Supports AMD CrossFire™ Technology

Onboard Graphics

• 1x DVI-D port, support a maximum resolution of 1920x1200 @60Hz ¹
• 1x HDMI™ 2.0b port, supports a maximum resolution of 4096x2160 @30Hz, 2560x1600 @60Hz ¹/²
• Maximum shared memory of 16 GB

1. Available only on processors featuring integrated graphics.
2. Graphics specifications may vary depending on the CPU installed.

SATA Ports

• 6x SATA 6Gb/s ports (From B550 chipset)

M.2 SSD Slots

• 1x M.2 slot (Key M)
  • M2_1 slot (From CPU)
    • Supports PCIe 3.0 x4
    • Supports SATA 6Gb/s
    • Supports 2260/ 2280/ 22110 storage devices

RAID

• Supports RAID 0, RAID 1 and RAID 10 for SATA storage devices

Audio

Realtek^® ALC897 Codec

• 7.1-Channel High Definition Audio

LAN

• 1x Realtek^® RTL8111H LAN controller

Power Connectors

• 1x 24-pin ATX main power connector
• 1x 8-pin ATX 12V power connector

Internal USB Connectors

• 1x USB 3.2 Gen 1 5Gbps connector (From B550 chipset)
  • Supports additional 2 USB 3.2 Gen 1 5Gbps ports
• 2x USB 2.0 connectors (From B550 chipset)
  • Supports additional 4 USB 2.0 ports

Fan Connectors

• 1x 4-pin CPU fan connector
• 1x 4-pin water-pump fan connector
• 4x 4-pin system fan connectors

System Connectors

• 1x Front panel audio connector
• 2x System panel connectors
• 1x Chassis Intrusion connector
• 1x TPM module connector
• 1x Serial port connector
• 1x Parallel port connector

Jumpers

• 1x Clear CMOS jumper

LED Features

• 2x 4-pin RGB LED connectors
• 4x EZ Debug LED

Back panel ports

I/O Controller

NUVOTON NCT6797 Controller Chip

Hardware Monitor

• CPU/ System/ Chipset temperature detection
• CPU/ System/ Pump fan speed detection
• CPU/ System/ Pump fan speed control

Form Factor

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

BIOS Features

• 1x 256 Mb flash
• UEFI AMI BIOS
• ACPI 6.1, SMBIOS 2.8
• Multi-language

Software

• MSI Center
• CPU-Z MSI GAMING
• Google Chrome™, Google Toolbar, Google Drive
• Norton™ Internet Security Solution

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.