MSI MPG B550 GAMING PLUS AM4 ATX Motherboard

$139.98

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Support for 3rd Gen AMD Ryzen processors ( 3000, 4000, and 5000 ) and future AMD Ryzen processors with BIOS update

  • Supports dual channel DDR4 memory up to 128 GB (4400 MHz)

  • Lightning Fast Game experience: PCIe 4.0, Lightning Gen 4 M.2 with M.2 Shield Frozr, AMD Turbo USB 3.2 GEN 2

  • MYSTIC LIGHT: RGB LED lighting and extendable pin headers – 16.8 million colors / 29 effects

  • Premium Thermal Solution: Extended heatsink with additional choke thermal pad rated for 7W/mk and PCB with 2oz thickened copper

Shop The MSI Store

Free Shipping On All Orders
Free Hassle-Free Returns

Shop All Motherboards


Support for 3rd Gen AMD Ryzen processors ( 3000, 4000, and 5000 ) and future AMD Ryzen processors with BIOS update

  • Supports dual channel DDR4 memory up to 128 GB (4400 MHz)

  • Lightning Fast Game experience: PCIe 4.0, Lightning Gen 4 M.2 with M.2 Shield Frozr, AMD Turbo USB 3.2 GEN 2

  • MYSTIC LIGHT: RGB LED lighting and extendable pin headers – 16.8 million colors / 29 effects

  • Premium Thermal Solution: Extended heatsink with additional choke thermal pad rated for 7W/mk and PCB with 2oz thickened copper

AMD Ryzen 7 5800XT 3.8 GHz Eight-Core AM4 Processor
AMD Ryzen 7 5800XT 3.8 GHz Eight-Core AM4 Processor
Sale Price: $219.98 Original Price: $249.00

Set the foundation of your next custom gaming-focused PC with the MPG B550 GAMING PLUS AM4 ATX Motherboard from MSI. It's ideal for the gaming enthusiast who wishes to have complete control over their build without breaking the bank. Sporting the AMD AM4 socket and B550 chipset, you can easily use a wide range of Ryzen 5000, 4000, and 3000 Series processors. Four DDR4 RAM slots allow you to install up to 128GB of RAM with overclocking speeds up to 4400 MHz for greater multitasking, gaming, and render performance. Two M.2 SSD interfaces and six SATA ports allow you to amass multiple storage devices for your games, media, and more. Utilize graphics and utility cards with a series of expansion ports including one PCIe 4.0 x16, one PCIe 3.0 x16 (in x4 mode), and two PCIe 3.0 x1 slots. Between internal headers and back panel ports, you get access to multiple USB 2.0, 3.2 Gen 1, and 3.2 Gen 2 ports, allowing you to support a breadth of peripherals from keyboards to audio interfaces. Connect to your network with the Gigabit Ethernet port, giving you enhanced upload and download speeds suitable for accessing your cloud storage, gathering assets, and playing your favorite streaming media.

Performance and Protection

MSI designed the MPG B550 with a mindfulness, starting with a six-layered 2oz thickened copper printed circuit board which increases conductivity and improves heat dissipation. A 10+2+1 Duet Rail CPU power system utilizes phasing technology, enabling core boost capabilities that empower the processor for overclocking, while reducing electrical loads. Load-line calibration and overvoltage protection stabilize CPU voltage and protect critical components from short-circuiting under heavy operational loads. ESD protection provides additional grounding layers around the mounting holes, preventing potential static discharge from damaging the motherboard. Additionally, the PCIe slot features steel-armor covering, preventing the weight of heavy graphics cards from affecting the motherboard by heavily reinforcing soldered connections.

Performance Boosting Technology

Lightning Gen 4 works with the two M.2 PCIe NVMe SSD slots to provide you with enhanced data transfer speeds up to 64 Gb/s, improving loading times and general operating system performance. Audio Boost also provides studio-grade sound for immersive gaming experiences. Game Boost is a quick one-second enhancement that allows your system to enable overclocking with just the press of a button. HDMI and DisplayPort outputs allow up to 4K resolution depending on the CPU installed.

Thermal Solutions

MSI provides multiple thermal solutions to keep your motherboard and components cool as you game. Pump fan support allows you to attach various water-cooling systems while also reducing radiator noise. Extended heat sinks and cooler pads provide better heat transference through the board, reducing temperature throughout the system. The M.2 Shield Frozr is a specialized heatsink designed for M.2 PCIe NVMe solid-state drives, preventing damage caused by overheating. A 7W/mk thermal pad provides better heat transfer, adding another layer of elemental protection.

MSI Dragon Center

Adjust operation parameters and monitor performance with the MSI Dragon Center software. This program allows you to fine-tune various aspects of your build, streamlining fan control and making custom changes simple and easy. With the LAN Manager, you can prioritize your games over other applications, adjust bandwidth properties, and run multiple tests to ensure optimized gaming performance. Dragon Center also enables you to change lighting settings for compatible RGB-enabled components such as fans and peripherals like mice and keyboards.

Enhanced Sound

Make sure you enjoy the purest sound quality in both stereo and surround sound with a dedicated high-definition audio processor backed by high-fidelity capacitors for deep and realistic sound. Like a dedicated sound card, audio components and circuits have been laid on a reserved motherboard section and electrically isolated. Using separated layers in the PCB ensures equally pristine sound quality for both left and right audio channels.

Here are the key features of the product.

  • ATX Form Factor
  • AMD B550 Chipset
  • AM4 Socket
  • 4 x Dual-Channel DDR4-4400 MHz (OC)
  • 6 x SATA III, 2 x M.2
  • 1 x PCIe 4.0 x16, 1 x PCIe 3.0 x16 Slot
  • 2 x PCIe 3.0 x1 Slots
  • Gigabit Ethernet
  • 7.1-Channel HD Audio
  • Supports Windows 11 (64-Bit)
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
Chipsets
Number of Memory Slots 4x288pin (DDR4)
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 JEDEC

1DPC 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
Memory
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 x16 1 x PCI Express x16
PCI Express x1 2 x PCIe 3.0 x1 slots
Expansion Slots
Serial ATA (SATA) 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 4096x2160 @24Hz
1 x DisplayPort, supports a maximum resolution of 4096x2160 @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 1Gbps
Onboard LAN
Back I/O Ports 4 x USB 3.1 Gen 1
USB 3.0 4 x USB 3.0
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
Software Feature
Features Support for 3rd Gen AMD Ryzen Processors and future AMD Ryzen processors with BIOS update

Supports DDR4 Memory, up to 4400(OC) MHz

Lightning Fast Game experience: PCIe 4.0, Lightning Gen 4 x4 M.2 with M.2 Shield Frozr, AMD Turbo USB 3.2 GEN 2

Enhanced Power Design: Core Boost, Digital PWM IC, 2oz Thickened Copper PCB, DDR4 Boost

Premium Thermal Solution: Extended Heatsink Design and M.2 Shield Frozr are built for high performance system and non-stop gaming experience

Pre-installed I/O Shielding: Better EMI protection and more convenience for installation

Flash BIOS Button with Optmized ClearCMOS Function: Simply use a USB key to flash any BIOS within seconds. Restore the BIOS to the default settings without any additional actions

Audio Boost: Reward your ears with studio grade sound quality
Features

These are the technical specifications.

These are the technical specifications.

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Items Included

  • MSI MPG B550 GAMING PLUS AM4 ATX Motherboard

  • 2 x SATA Cables

  • M.2 Screw Pack

  • Case Badge

  • Driver DVD

  • Limited 3-Year Manufacturer Warranty


Additional Resources

User Manual