Chipset

AMD® B550 Chipset

Memory

4x DDR4 memory slots, supporting up to 128GB*

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 4400 MHz

1DPC 2R max speed 3733 MHz

2DPC 1R max speed 3866 MHz

2DPC 2R max speed 3466 MHz

Dual channel memory architecture

Supports non-ECC UDIMM memory

Supports ECC UDIMM memory (non-ECC mode)

Supports un-buffered memory

* Please refer www.msi.com for more information on compatible memory.

* See supported memory

Expansion slot

1x PCIe 3.0 x16 slot (From CPU)

2x PCIe 3.0 x1 slots (From AMD B550 chipset)

Onboard graphics

1x VGA port, supports a maximum resolution of 2048x1536 @50Hz, 2048x1280 @60Hz, 1920x1200 @60Hz

1x HDMI™ 1.4 port, supporting a maximum resolution of 4096x2160 @30Hz, 2560x1600 @60Hz

1x DVI-D port, supports a maximum resolution of 1920x1200 @60Hz

Maximum shared memory of 16 GB

* Available only on processors featuring integrated graphics.

* Graphics specifications may vary depending on the CPU installed.

SATA ports

4x SATA 6Gb/s ports (From AMD B550 Chipset)

M.2 SSD slots

1x M.2 slot (Key M)

M2_1 slot (From CPU)

Supports PCIe 3.0 x4

Supports SATA 6Gb/s

Supports 2242/ 2260/ 2280 storage devices

RAID

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

Audio

Realtek® ALC897 Codec

7.1-Channel High Definition Audio

LAN

1x Realtek® RTL8111H 1Gbps LAN controller

Power connectors

1x 24-pin ATX main power connector

1x 8-pin ATX 12V power connector

Internal USB connectors

1x USB 3.2 Gen 1 5Gbps connectors (From AMD B550 Chipset)

Supports additional 2 USB 3.2 Gen 1 5Gbps ports

2x USB 2.0 Type-A connectors (From AMD B550 Chipset)

Supports additional 4 USB 2.0 ports

Fan connectors

1x 4-pin CPU fan connector

2x 4-pin system fan connectors

System connectors

1x Front panel audio connector

2x System panel connectors

1x Chassis Intrusion connector

1x Serial port connector

1x Parallel port connector

1x TPM module connector

Jumpers

1x Clear CMOS jumper

LED features

1x 4-pin RGB LED connector

4x EZ Debug LED

Back panel connectors

Keyboard / Mouse

VGA

USB 2.0

USB 3.2 Gen 1 5Gbps Type-A

LAN port

Audio connector

USB 2.0

DVI-D

HDMI™

USB 3.2 Gen 1 5Gbps Type-A

I/O controller

NUVOTON NCT6795D-M Controller Chip

Hardware monitor

CPU/ System/ Chipset temperature detection

CPU/ System fan speed detection

CPU/ System fan speed control

Form factor

m-ATX Form Factor

9.6 in. x 9.6 in. (24.4 cm x 24.4 cm)

BIOS features

1x 256 Mb flash

UEFI AMI BIOS

ACPI 6.1, SMBIOS 2.8

Multi-language

Software

MSI Center

Box content

PRO B550M-P GEN3 Motherboard

M.2 Screw / Standoff Set

2 x SATA Cables

I/O Shield

MSI Case Badge

Quick Installation Guide

Product Registration Card