Model Name: MSI B550-A PRO

Specification

Chipset: AMD B550 Chipset

• Memory:
• 4x DDR4 memory slots, support up to 128GB
• Dual channel memory architecture
• Supports non-ECC UDIMM memory
• Supports ECC UDIMM memory (non-ECC mode)
• Supports un-buffered memory
• 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
• Expansion Slot:
• 1x PCIe 4.0/3.0 x16 slot (PCI_E1)
• 1x PCIe 3.0 x16 slot (PCI_E3), supports x4 speed
• 2x PCIe 3.0 x1 slots
• Multi-GPU:
• 1x HDMI™ 2.1 port, supports a maximum resolution of 4096x2160 @60Hz
• Supports HDCP 1.4 & 2.3
• 1x DisplayPort, supports a maximum resolution of 4096x2160 @60Hz
• Maximum shared memory of 16 GB
• Storage:
• AMD B550 Chipset
• 6x SATA 6Gb/s ports
• 2x M.2 slots (Key M)
• M2_1 slot (from AMD Processor)
• Supports PCIe 4.0/3.0 x4
• 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

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:
  • 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

AUDIO

• Realtek® ALC892/ALC897 Codec
• 7.1-Channel High Definition Audio

LAN

• 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
• 1x TPM module connector
• 1x Clear CMOS jumper

Dimensions

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