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  • MSI B550M-A Pro Gen4, AMD AM4, Motherboard (DDR4)
Brand

MSI
Model

Pro B550M-A Gen3/Gen4
Chipset

AMD B550
Socket

AMD Socket AM4
CPU Support

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
Memory Support

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
DIMM Slots

2
Max Memory

Up to 64 GB
Expansion Slots

1x PCIe 3.0 x1 slot 1
1x PCIe 4.0/3.0 x16 slot
Onboard Graphics

1x HDMI™ 2.1 port, supports a maximum resolution of 4096×2160 @60Hz12
Support HDCP 1.4 & 2.3
1x DVI-D port, supports a maximum resolution of 1920×1200@60Hz1
Maximum shared memory of 16 GB
Storage Interface

4x SATA 6Gb/s ports (From AMD B550 Chipset
1x M.2 slot (Key M)
Raid Support

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

AMD B550 Chipset
2x USB 3.2 Gen 1 5Gbps ports are available through the internal USB 3.2 Gen 1 5Gbps connector
6x USB 2.0 ports (2 Type-A ports on the back panel, 4 ports through the internal USB 2.0 connectors)
AMD Processor
4x 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® RTL8111H 1Gbps LAN controller
Internal I/O Ports

1x 24-pin ATX main power connector
1x 4-pin ATX 12V power connector
4x SATA 6Gb/s connectors
1x M.2 slots (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 connectors
1x Front panel audio connector
2x System panel connectors
1x Chassis Intrusion connector
1xTPM module connector
1x Clear CMOS jumper
Back Panel Connectors

LAN port
HDMI™
DVI-D
Keyboard / Mouse
USB 3.2 Gen 1 5Gbps Type-A
USB 3.2 Gen 1 5Gbps Type-A
USB 2.0 Ports
Audio Connectors
Operating System

Support for Windows 11 64-bit
Support for Windows 10 64-bit
Form Factor

mATX
Warranty

1 Year

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