MSI B550M-A PRO AM4 Micro ATX AMD Motherboard

Specification

Basic Information

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

Expansion Slots

PCI

PCI-E X16 x 1

PCI-E (Gen4 / Gen3)

M.2 Socket

1 x M.2 Socket

Memory

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

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

Connector & Ports

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

Warranty Information

Manufacturing Warranty

3 Years Warranty