MSI B550M-A PRO AMD AM4 Micro ATX Motherboard

Brand

MSI

Model

B550M-A PRO

Supported 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

Chipset

AMD B550 Chipset

Audio

Realtek ALC892/ALC897 Codec

PCI

PCI-E X16 x 1
PCI-E (Gen4 / Gen3)

M.2 Socket

1 x M.2 Socket

Type

DDR4

Slots

1x PCIe 3.0 x1 slot 1
1x PCIe 4.0/3.0 x16 slot
The supported specification depends on the installed processor.

Supported 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

Maximum Memory

64GB

Graphics

1x HDMI 2.1 port, supports a maximum resolution of 4096x2160 @60Hz
1x DVI-D port, supports a maximum resolution of 1920x1200@60Hz
Available for the processor with integrated graphics.
Graphics specifications may vary depending on the CPU installed.

Max Shared Memory

16 GB

HDMI

1 x HDMI

USB (s)

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

LAN Port (s)

1x Realtek RTL8111H Gigabit LAN

Supported Storage

AMD B550 Chipset
4x SATA 6Gb/s ports
1x M.2 slot (Key M) (from AMD Processor)
Supports PCIe 4.0/ 3.0
Supports SATA 6Gb/s
Supports 2242/ 2260/ 2280 storage devices
The supported specification depends on the installed processor.
Supports RAID 0, RAID 1 and RAID 10 for SATA storage devices
Supports RAID 0 and RAID 1 for M.2 NVMe storage devices

Audio

7.1-Channel High Definition Audio

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
1x Clear CMOS jumper

TPM (Trusted Platform Module )

1 x TPM module connector

Manufacturing Warranty

3 Years Warranty