MSI B550M PRO Motherboard (AMD Ryzen 3000 3rd Gen AM4, DDR4, M.2, USB 3.2 Gen 1, DP, HDMI, Micro ATX)

B550M PRO

Socket
Chipset
Memory Channel
DIMM Slots
Max Memory (GB)
PCI-E x16
PCI-E Gen
PCI-E x1
SATAIII
M.2 Slot
RAID
TPM (header)
USB 3.2 ports (Front)
USB 3.2 ports (Rear)
USB 2.0 ports (Front)
USB 2.0 ports (Rear)
Serial ports(Front)
Audio ports (Rear)
DisplayPort
VGA
HDMI
DirectX
Operating System
Form Factor

Socket

AMD Socket AM4

Chipset

AMD® B550 Chipset

Memory Channel

Dual

DIMM Slots

Max Memory (GB)

PCI-E x16

PCI-E Gen

Gen4 / Gen3

PCI-E x1

SATAIII

M.2 Slot

RAID

0/1/10

TPM (header)

USB 3.2 ports (Front)

2(Gen 1, Type A)

USB 3.2 ports (Rear)

4(Gen 1, Type A)

USB 2.0 ports (Front)

USB 2.0 ports (Rear)

2(Type A)

Serial ports(Front)

Audio ports (Rear)

Realtek® ALC892/ALC897 Codec

DisplayPort

HDMI

DirectX

Operating System

Support for Windows® 10 64-bit

Form Factor

M-ATX

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

See supported processors

Chipset

AMD B550 Chipset

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

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

See supported memory

Expansion Slot

1x PCIe x16 slot (PCI_E2)
- B550M PRO supports PCIe 4.0/3.0 ¹
2x PCIe 3.0 x1 slots

The supported specification depends on installed processor.

Onboard Graphics

1x VGA port, supports a maximum resolution of 2048x1536@50Hz, 2048x1280@60Hz, 1920x1200@60Hz²
1x HDMI 2.1 port, supports a maximum resolution of 4096x2160@60Hz ¹²
Support HDCP 1.4 & 2.3
1x DisplayPort 1.4 port, supports a maximum resolution of 4096x2160 @60Hz²
Maximum shared memory of 16GB

Graphics specifications may vary depending on the CPU installed.
Available for the processor with integrated graphics.

Storage

AMD B550 Chipset

4x SATA 6Gb/s ports
1x M.2 slot (Key M) (from AMD Processor)
- B550M PRO Supports PCIe 4.0/ 3.0 x4 ¹
- Supports SATA 6Gb/s
- Supports 2242/ 2260/ 2280 storage devices

The supported specification depends on installed processor.

RAID

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

USB

AMD B550 Chipset

2x USB 3.2 Gen 1 5Gbps ports (2 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 LAN controller

Internal connectors

1x 24-pin ATX main power connector
1x 8-pin ATX 12V power connector
4x SATA 6Gb/s connectors
1x Serial port connector
1x M.2 slot (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 connector
1x Front panel audio connector
2x System panel connectors
1x Chassis Intrusion connector
1x 4-pin RGB LED connector
1x 3-pin RAINBOW LED connector
1x TPM module connector
1x Clear CMOS jumper

Back panel ports

VGA
Keyboard / Mouse
LAN port
HDMI
DisplayPort
USB 2.0 Ports
USB 3.2 Gen 1 5Gbps Type-A
USB 3.2 Gen 1 5Gbps Type-A
Audio Connectors

Dimensions

M-ATX Form Factor
9.6 in. x 8.3 in. (24.4 cm x 21 cm)

MOUNTING

6 mounting holes

Box content

MSI^® does not guarantee the risks or damages caused by changing the cover.
These pictures are for reference only and may vary without notice.

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