MSI MPG B550 Gaming Plus Motherboard

Brand
MSI

Model
MPG B550 GAMING PLUS

CPU socket type
AM4

CPU Type
Supports AM4 socket 3rd Gen AMD Ryzen processors, and future AMD Ryzen processors with BIOS update
Supported CPU

Chipset
AMD B550
Number of Memory Slots
4×288pin

Memory Standard
Supports DDR4 4400+/ 4266/ 4133/ 4000/ 3866/ 3733/ 3600/ 3466/ 3200/ 3066/ 3000/ 2933/ 2800/ 2667 MHz by A-XMP OC MODE
Supports DDR4 3200/ 3066/ 3000/ 2933/ 2800/ 2667/ 2400/ 2133/ 1866 MHz by JEDEC1DPC 1R max speed 4400 MHz
1DPC 2R max speed 3866 MHz
2DPC 1R max speed 4000 MHz
2DPC 2R max speed 3600 MHz

Maximum Memory Supported
128GB

Channel Supported 
Dual Channel
PCI Express 4.0 x16
1 x PCIe 4.0/3.0 x16 slot (PCI_E1)
The supported specification depends on installed processor.

PCI Express 3.0 x16 
1 x PCIe 3.0 x16 slot (PCI_E3), supports x4 speed
When installing PCIe SSD in M.2_2, PCI_E3 slot will be unavailable.

PCI Express x1
2 x PCIe 3.0 x1 slots
Expansion Slots

SATA 6Gb/s
6 x SATA 6Gb/s

M.2
2 x M.2 slots (Key M)
M2_1 slot (from AMD Processor)
Supports PCIe 4.0/3.0 x4
Supports SATA 6Gb/s
Supports 2242/2260/2280/22110 storage devices
M2_2 slot (from AMD B550 chipset)
Supports PCIe 3.0 x4
Supports 2242/2260/2280 storage devices* The supported specification depends on installed processor.

SATA RAID
0/1/10
Storage Devices

Onboard Video Chipset 

Supported only by CPU with integrated graphic:
1 x HDMI port, supports a maximum resolution of 4096×2160 @24Hz
1 x DisplayPort, supports a maximum resolution of 4096×2160 @60Hz
Maximum shared memory of 16GB
Available for the processor with integrated graphics.
Onboard Video

Audio Chipset
Realtek ALC892

Audio Channels
7.1-Channel High Definition Audio
Supports S/PDIF output
Onboard Audio

LAN Chipset
Realtek RTL8111H

Max LAN Speed
10/100/1000Mbps
Onboard LAN

Back I/O Ports
1 x DisplayPort / 1 x HDMI / 1 x LAN (RJ45) / 1 x Optical S/PDIF Out / 1 x PS/2 Keyboard/Mouse Combo / 1 x USB 3.2 Gen 2 Type-A / 1 x USB 3.2 Gen 2 Type-C / 2 x USB 3.2 Gen 1 / 4 x USB 2.0/1.1 / 5 x Audio Jacks
Rear Panel Ports

Onboard USB
1 x USB 3.2 Gen 1 5Gbps Type-C port
1 x USB 3.2 Gen 1 5Gbps connector (supports additional 2 USB 3.2 Gen 1 5Gbps ports)
2 x USB 2.0 connectors (supports additional 4 USB 2.0 ports)

Other Connectors
1 x 4-pin CPU fan connector
1 x 4-pin water-pump fan connector
6 x 4-pin system fan connectors
1 x Front panel audio connector
2 x System panel connectors
1 x Chassis Intrusion connector
1 x 4-pin RGB LED connector
2 x 3-pin RAINBOW LED connectors
1 x TPM module connector
1 x Clear CMOS jumper
Internal I/O Connectors

Form Factor
ATX

LED Lighting
RGB

Dimensions
(W x L) 12.0″ x 9.6″

Power Pin
1 x 24-pin ATX main power connector
1 x 8-pin ATX 12V power connector

Physical Spec
Windows 11 Supported
Windows 11 Compatibility