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MSI

MSI MPG B550 GAMING PLUS AM4 AMD B550 ATX Motherboard (Boxed)

SKU 5483 Brand MSI EAN13 4719072731885
AMD B550 ATX motherboard with Socket AM4 for Ryzen 3000/5000 series. Supports DDR4 up to 128GB/4400MHz(OC), PCIe 4.0, 2x M.2 Gen4, 10+2+1 VRM, Mystic Light RGB, USB 3.2 Gen2.
Motherboards - CPU Socket AMD AM4
Motherboards - Chipset AMD B550
Motherboards - Form Factor ATX
Motherboards - Memory Type DDR4
Motherboards - Memory Profile Support A-XMP
Motherboards - Memory Slots 4
Motherboards - Max Memory Capacity 128 GB
Motherboards - Main Slot PCIe Version PCIe 4.0
Motherboards - Color Black
Motherboards - M.2 Slots 2
Motherboards - SATA Ports 6
Motherboards - USB-C Support Front Panel Type-C header Rear Type-C
Motherboards - RGB Headers 3-pin 5V ARGB 4-pin 12V RGB
Motherboards - Wireless Connectivity None

GAME IN STYLE
The MSI MPG B550 GAMING PLUS lets gamers express style with advanced RGB lighting via Mystic Light, supporting 16.8M colors and extensions for LED strips. Real-time notifications enhance immersion.

PREMIUM PERFORMANCE & THERMALS
Built on AMD B550 chipset with 10+2+1 digital power phases and Core Boost for stable overclocking. Extended heatsinks, M.2 Shield Frozr keep components cool. Supports PCIe 4.0 for GPU/M.2, up to 4400MHz DDR4 via A-XMP.

CONNECTIVITY & EASY BUILD
Features USB 3.2 Gen2 (10Gbps), front Type-C header, Realtek ALC892 7.1 audio, Gigabit LAN. Pre-installed I/O shield, EZ Debug LED, BIOS flashback simplify setup. Dragon Center software unifies control.

  • Socket AM4: Ryzen 3000/4000G/5000 series
  • Memory: 4x DDR4, max 128GB
  • Storage: 6x SATA III, 2x M.2 (1x Gen4)
  • Expansion: 1x PCIe 4.0 x16, 1x PCIe 3.0 x16, 2x PCIe 3.0 x1
  • RGB: Mystic Light headers
Processor manufacturerAMD
Processor socketSocket AM4
Compatible processor seriesAMD Ryzen 3000 Series, AMD Ryzen 4000 G-Series, AMD Ryzen 5000 Series
Motherboard chipsetAMD B550
Motherboard form factorATX
Supported memory typesDDR4-SDRAM
Number of memory slots4
Maximum internal memory128 GB
Supported memory clock speeds1866, 2133, 2400, 2667, 2800, 2933, 3000, 3066, 3200, 3466, 3600, 3733, 3866, 4000, 4133, 4266, 4400 MHz(OC)
Number of SATA III connectors6
Number of M.2 (M) slots2
PCI Express x16 (Gen 4.x) slots1
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity1
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity1
Ethernet LANYes
Audio output channels7.1 channels
Product colourBlack
Width305 mm
Depth244 mm
Weight1 kg