MSI

MSI MPG B550 Gaming Plus - AMD AM4 ATX Motherboard

4.6 (1123 reviews)
7WUSB 3.22oz

Unleash Peak Gaming Performance with AMD RyzenThe MSI MPG B550 GAMING PLUS is engineered for high-performance gaming. This motherboard supports AMD Ryzen AM4 processors and boasts advanced thermal solutions and blazing-fast connectivity. Brand: MSI Model: MSI MPG B550 GAMING PLUS ...

$139.99*
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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.

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Overview

Unleash Peak Gaming Performance with AMD Ryzen

The MSI MPG B550 GAMING PLUS is engineered for high-performance gaming. This motherboard supports AMD Ryzen AM4 processors and boasts advanced thermal solutions and blazing-fast connectivity.

  • Brand: MSI
  • Model: MSI MPG B550 GAMING PLUS
  • CPU Socket: AMD AM4
  • Chipset: AMD B550
  • RAM: Supports DDR4 up to 128GB (4400 MHz)
  • Memory Speed: 6 GHz
  • Expansion Slots: PCIe 4.0
  • M.2 Slots: Lightning Gen 4 M.2 with M.2 Shield Frozr
  • USB Ports: USB 3.2 Gen 2
  • USB 2.0 Ports: 12
  • Video Output: HDMI/DP
  • Form Factor: ATX
  • Lighting: MYSTIC LIGHT RGB LED with extendable pin headers
  • Audio: AUDIO BOOST
  • Dimensions: 12 x 9.6 x 1.5 inches
  • Weight: 3.78 pounds
  • Compatible Processors: RYZEN 9
  • Compatible Devices: Personal Computer
  • RAM Memory Technology: DDR4
  • Platform: Windows 10
  • Memory Storage Capacity: 128 GB

Key Features

Support for 3rd Gen AMD Ryzen processors 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

AUDIO BOOST rewards your ears with studio grade sound quality for immersive gaming experiences

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

Pre-installed I/O Shielding for convenience and protection from electrostatic discharge

Specifications

Processor Socket
AMD AM4
Supported Processors
3rd Gen AMD Ryzen, Future AMD Ryzen (with BIOS update)
Memory Type
DDR4
Max Memory Capacity
128 GB
Max Memory Speed
4400 MHz
PCIe Standard
PCIe 4.0
M.2 Support
Lightning Gen 4 M.2 with M.2 Shield Frozr
USB Standard
AMD Turbo USB 3.2 GEN 2
RGB Lighting
MYSTIC LIGHT (16.8 million colors / 29 effects)
Audio Technology
AUDIO BOOST
Thermal Solution
Extended heatsink, choke thermal pad (7W/mk), PCB with 2oz thickened copper
I/O Shielding
Pre-installed
Form Factor
ATX

Pros & Cons

👍 Pros

  • Supports 3rd Gen AMD Ryzen processors and future AMD Ryzen processors with a BIOS update, ensuring broad compatibility.
  • Accommodates dual channel DDR4 memory up to 128 GB at speeds up to 4400 MHz for high-performance computing.
  • Provides a lightning-fast gaming experience with PCIe 4.0 and Lightning Gen 4 M.2 with M.2 Shield Frozr for rapid data access.
  • Features AMD Turbo USB 3.2 GEN 2 for quick data transfer speeds, improving overall system responsiveness.
  • Includes MYSTIC LIGHT RGB LED lighting with 16.8 million colors and 29 effects, allowing for extensive aesthetic customization.
  • AUDIO BOOST delivers studio-grade sound quality, enhancing immersive gaming and multimedia experiences.
  • Equipped with a premium thermal solution, including an extended heatsink and a choke thermal pad rated for 7W/mk, for effective heat dissipation.
  • Comes with pre-installed I/O Shielding, offering convenience during installation and protection from electrostatic discharge.

👎 Cons

  • Specific details on the number of PCIe 4.0 slots are not provided, which could be important for advanced setups.
  • The exact type of future AMD Ryzen processors supported is not specified beyond a general "future" reference.
  • While RGB lighting is a feature, some users might prefer a more understated aesthetic or no lighting at all.
  • The motherboard form factor is ATX, which may not be suitable for smaller PC cases or builds.

Frequently Asked Questions

The MSI MPG B550 Gaming Plus motherboard supports 3rd Gen AMD Ryzen processors and is also compatible with future AMD Ryzen processors through a BIOS update.
This motherboard supports dual channel DDR4 memory, allowing for up to 128 GB of RAM with speeds reaching up to 4400 MHz.
It offers a lightning-fast gaming experience with PCIe 4.0, Lightning Gen 4 M.2 with M.2 Shield Frozr, and AMD Turbo USB 3.2 GEN 2 for quick loading and data transfer.
The MSI MPG B550 Gaming Plus comes with a premium thermal solution, featuring an extended heatsink, an additional choke thermal pad rated for 7W/mk, and a PCB with 2oz thickened copper.
Yes, it includes MYSTIC LIGHT RGB LED lighting, offering 16.8 million colors and 29 effects, along with extendable pin headers for further customization.
The motherboard features pre-installed I/O Shielding, which provides convenience during installation and offers protection from electrostatic discharge.
The motherboard incorporates AUDIO BOOST technology, which delivers studio-grade sound quality for an immersive gaming and overall audio experience.