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MSI AMD B550 MPG GAMING PLUS PCIe 4.0 ATX Motherboard
MotherboardsMSI

MSI AMD B550 MPG GAMING PLUS PCIe 4.0 ATX Motherboard

MPN: MPG B550 GAMING PLUS

Key specifications

SocketAM4
Form factorATX
ChipsetAMD B550
Memory typeDDR4
M.2 slots2
Max Memory128 GB
Best indexed price
£115.47GBP
Indexed 20 Oct 2026 — verify at retailer. How we get prices

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Scan£115.47
Indexed 20 Oct 2026New
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eBay UK£119.99
Indexed 16 Mar 2026New · seller laptopoutletdirect
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Full Specifications58 fields

Additional Information

Model Number
MPG B550 GAMING PLUS
Gtin
4719072731885

Additional Specifications

Water Cooled
No
Cooling
Passive Heatsinks
Qpi Speed
N/A
Dimensions
305 x 244 mm
Note
-

Colour

Primary Colour
Black

Core Specifications

Edition
MPG B550 GAMING PLUS
Form Factor
ATX
Socket
AM4
Chipset
AMD B550

CPU

Cpu Manufacturer
AMD

Dimensions

Length Depth
305 mm
Width
244 mm

Expansion Slots

Pcie 4 0 X16 Mechanical Slot
1
Pcie 3 0 X16 Mechanical Slot
2
Pcie 3 0 X1 Mechanical Slot
2

External Connectivity

Network Interface Type
Wired Gigabit LAN (10/100/1000)
Network Chip Modules
1 x Realtek RTL8111H (Gigabit LAN)
Rear I O Connectors
1 x 10/100/1000 (LAN) 1 x Central Speaker Out 1 x DisplayPort 1 x Flash BIOS Button 1 x HDMI 1 x Line In 1 x Line Out 1 x Mic-In 1 x PS/2 Keyboard/Mouse Combo 1 x Rear Speaker Out 1 x S/ PDIF-Out (Optical) 4 x USB 2.0 3 x USB 3.2 Gen2 Type-A 1 x USB 3.2 Gen2 Type-C

External Ports

Usb 3 2 External Type C
2
Usb 2 0 External Type A
4
Display Connectors
HDMI (1x), Display Port (1x)

Fan Header

3 Pin Fan Connectors
2
4 Pin Fan Connectors
9

Form Factor

Motherboard Formfactor
ATX

Graphics Support

Primary Gpu Interface
PCIe 4.0 (x16)
Nvidia Sli Support
Not Supported
Amd Crossfire Support
2-Way CrossFire
Integrated Graphics
-
On Board Graphics Connectors
DisplayPort HDMI

Internal Connectivity

Expansion Slots
1 x M.2, 22-42/60/80, PCIe Gen3x4 1 x M.2, 22-42/60/80/ 110, PCIe Gen4x4/SATA 2 x PCIe 3.0 x1 1 x PCIe 3.0 x16 1 x PCIe 4.0 x16
Sata Support
N/A
Raid Support Via
-
Storage Mode Support
RAID 0 RAID 1 RAID 10
Internal I O
1 x 24-pin (Power) 2 x 3-pin RAINBOW LED connector 6 x 4-pin CHA_FAN connector 1 x 4-pin CPU Fan Connector 1 x 4-pin RGB LED connector 1 x 4-pin Water Pump Connector 1 x 8-pin (Power) 1 x Chassis Intrusion connector 1 x Clear CMOS jumper 1 x Front Panel Audio Header 6 x SATA III - 6Gb/s 2 x System panel connector 1 x TPM Header 2 x USB 2.0 Header 1 x USB 3.2 Gen1 Header 1 x USB 3.2 Gen1 Type-C Front Panel Header

Internal Ports

Cpu Power Supply
1x 8-Pin

Lighting

Lighting Rgb
Yes
Lighting Colour
RGB

Memory

Max Memory
128 GB
Memory Slots
4x

Motherboard

Motherboard Chipset
AMD B550

Multi

Gpu Multi Gpu Standard
AMD CrossFire (2-Way)

RAM Memory Support

Memory Type
DDR4
Memory Channel
Dual (2)
Memory Type Ecc
ECC/Non-ECC
Memory Type R U
UDIMM (Unbuffered)
Memory Speed Mhz
DDR4 - 1866 DDR4 - 2133 DDR4 - 2400 DDR4 - 2667 DDR4 - 2800 DDR4 - 2800(OC) DDR4 - 2933 DDR4 - 2933(OC) DDR4 - 3000 DDR4 - 3000(OC) DDR4 - 3066 DDR4 - 3066(OC) DDR4 - 3200 DDR4 - 3200(OC) DDR4 - 3466(OC) DDR4 - 3600(OC) DDR4 - 3733(OC) DDR4 - 3866(OC) DDR4 - 4000(OC) DDR4 - 4133(OC) DDR4 - 4266(OC) DDR4 - 4400+(OC)
Max Memory Capacity
128GB

Storage Ports

M 2 Pcie 3 0 X4
1
M 2 Pcie 4 0 X4
1
Sata 6g Internal
6

Wi

Fi Lan Lan Ports
1x 1 Gbit/s

General

Audio
Realtek ALC892 7.1 HD Audio