MSI B550M-A PRO/AM4/mATX

Chipset: AMD B550

Dimensional format: Micro-ATX Form Factor (236 mm x 200 mm)
Processor Support: 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
Processor socket: AM4

Memory position: 2x DDR4 DIMM
Memory support:

• 1866/2133/2400/2667/2800/2933/3000/3066/3200 MHz by JEDEC
• 2667/2800/2933/3000/3066/3200/3466/3600/3733/3866/4000/4133/4266/4400/4600+ MHz by A-XMP OC MODE

Max. RAM size: 64 GB
Support for memory type: DDR4

• Dual channel memory architecture
• Supports non-ECC UDIMM memory
• Supports ECC UDIMM memory (non-ECC mode)
• Supports un-buffered memory

Graphics Card

• Integrated Graphics Processor (based on processor)

Sound card:

• Realtek® ALC892/ALC897 Codec

Network card:

• 1x Realtek® RTL8111H Gigabit LAN controller

Expansion slots:

• 1x PCIe 3.0 x1 slot
• 1x PCIe 4.0/3.0 x16 slot

RAID controller: 0, 1, 10

SATA:

• 4x SATA 6Gb/s

M.2:

• 1x M.2 slots

USB:

• rear USB ports (total 6)
• 2x USB 2.0 ports
• 4x USB 3.2 Gen 1 5Gbps Type-A ports
• front USB ports (total 6)
• 2x USB 3.2 Gen 1 5Gbps ports
• 4x USB 2.0 ports

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

External ports:

• LAN port
• HDMI
• DVI-D
• Keyboard/Mouse
• 4x USB 3.2 Gen 1 5Gbps Type-A
• 2x USB 2.0 Ports
• Audio Connectors

Manufacturer website: https://www.msi.com/Motherboard/B550M-A-PRO