MSI MPG B550 Gaming Plus ATX Motherboard

The MSI MPG B550 Gaming Plus delivers advanced gaming performance with AMD Ryzen 5000 and 3000 series processor support. Built on the AMD B550 chipset with AM4 socket compatibility, this ATX motherboard provides the foundation for high-performance gaming systems with PCIe 4.0 support and comprehensive connectivity options.

Performance and Memory

Supports DDR4 memory up to 4400MHz (OC) across four DIMM slots with a maximum capacity of 128GB. The dual-channel memory architecture with DDR4 Boost technology ensures optimal performance for gaming and demanding applications. Compatible with AMD Ryzen 5000 and 3000 series desktop processors, plus Ryzen 4000 G-series processors (not compatible with Ryzen 5 3400G and Ryzen 3 3200G).

Enhanced Power Delivery

Features Core Boost technology with digital PWM IC and 2oz thickened copper PCB for stable power delivery. The extended heatsink design ensures high-end processors run at full speed under sustained loads, while the enhanced circuit design improves heat dissipation and performance reliability during extended gaming sessions.

PCIe 4.0 and Storage Expansion

Lightning Gen 4 solution provides PCIe 4.0 x16 slot with up to 64GB/s bandwidth for maximum graphics card performance. Dual M.2 slots include M.2 Shield Frozr thermal solution to prevent throttling and maintain SSD speeds. The primary M.2 slot supports PCIe 4.0/3.0 x4 with sizes up to 22110, while the secondary slot supports PCIe 3.0 x4. Six SATA III ports provide additional storage connectivity with RAID 0, 1, and 10 support.

Connectivity and Audio

Rear I/O includes USB 10Gbps Type-C and Type-A ports, four USB 2.0 ports, HDMI and DisplayPort outputs for integrated graphics, and Gigabit LAN. Front panel headers support USB 3.2 Gen1 5Gbps Type-C for modern chassis compatibility. Audio Boost delivers 7.1-channel high definition audio with studio-grade sound quality.

RGB Lighting and Customization

Advanced RGB lighting control with multiple headers: one 4-pin RGB LED and two 3-pin RAINBOW LED connectors for synchronized lighting effects. EZ LED Control button provides quick on/off control. The MPG series design allows full color expression and personalization to match your gaming setup.

Convenient Features

Pre-installed I/O shield provides better EMI protection and simplified installation. Flash BIOS Button enables BIOS updates via USB without CPU, memory, or graphics card installed. Optimized Clear CMOS function restores default settings without additional steps. Supports 2-Way AMD CrossFire for multi-GPU configurations.

Description

Specification

• Motherboard Type: Desktop
• Form Factor: ATX
• Socket: AMD AM4
• Chipset: AMD B550
• #Hide#DDR Type: DDR4
• CPU Support: Click here for CPU support
  Note: not compatible with Ryzen 5 3400G & Ryzen 3 3200G CPUs
• RAM Technology: DDR4 (Dual Channel)
  Supports non-ECC UDIMM memory
  Supports ECC UDIMM memory (non-ECC mode)
  Supports un-buffered memory
• RAM Slots: 4 x DIMM
• RAM Speeds: Up to 4400MHz (OC)
• Maximum Memory: 128GB
• Graphics: Integrated Graphics Processor
  Graphics specifications may vary between CPU types
• Graphics Ports: 1 x HDMI
  1 x DisplayPort
• Multi-GPU Support: Supports 2-Way AMD CrossFire
• PCI/PCI Express: 1 x PCIe 4.0/3.0 x16
  1 x PCIe 3.0 x16 (supports x4 speed)
  2 x PCIe 3.0 x1
• Storage: 6 x SATA III
  2 x M.2
  
  M.2_1 (2242/2260/2280/22110) - SATA & PCIe 4.0/3.0 x4
  M.2_2 (2242/2260/2280) - PCIe 3.0 x4
  
• RAID: "Supports RAID 0, 1 and 10 for SATA storage devices
  Supports RAID 0 and 1 for M.2 NVMe storage devices"
• Wireless: -
• LAN: GB LAN
• Audio: 7.1-Channel High Definition Audio
• USB Ports Supported: Rear:
  1 x USB 10Gbps Type-C
  1 x USB 10Gbps 1 Type-A
  2 x USB 5Gbps Type-A
  4 x USB 2.0
  
  Front:
  1 x USB 5Gbps Type-C
  2 x USB 5Gbps
  4 x USB 2.0
• Back Panel I/O Ports: 1 x USB 10Gbps Type-C
  1 x USB 10Gbps 1 Type-A
  2 x USB 5Gbps Type-A
  4 x USB 2.0
  1 x DisplayPort
  1 x HDMI
  1 x PS/2
  1 x RJ-45
  1 x Audio Line In
  3 x Audio Line Out
  1 x Microphone In
  1 x S/PDIF Optical Out
• Internal I/O Connectors: 1 x 24-pin ATX main
  1 x 8-pin ATX 12V
  6 x SATA 6Gb/s
  2 x M.2 (M-Key)
  1 x USB 3.2 Gen1 5Gbps Type-C
  1 x USB 3.2 Gen1 5Gbps
  2 x USB 2.0
  1 x 4-pin CPU fan
  1 x 4-pin water-pump fan
  6 x 4-pin system fan
  1 x Front panel audio
  2 x System panel
• .: 1 x Chassis Intrusion
  1 x 4-pin RGB LED
  2 x 3-pin RAINBOW LED
  1 x TPM module
  1 x Clear CMOS jumper
• Accessories: User Manual
  Quick Installation Guide
  MSI Case Badge
  Product Registration Card
  MSI Product Catalog
  Case Screw Guide
  2 x SATA Cables
  Promotion Card
  Driver DVD
• Additional Features: See Overview
• Package Type: Retail
• Package Weight: To be confirmed
• Warranty: 3 Years
• #Hide#M.2 Slot(s): Yes (M.2)
• #Hide#No. LAN Ports: 1 x LAN
• #Hide#Max LAN Speed: GB LAN
• #Hide#RGB Lighting: Out of the box RGB lighting