The MSI MPG B550 GAMING PLUS motherboard delivers a high‑performance platform for AMD AM4 gaming and productivity systems. It supports AMD Ryzen™ 5000, 4000 G‑Series, and 3000 Series processors, ensuring broad compatibility for modern builds.
Premium Thermal Design
Built with an extended heatsink and quality thermal materials, this motherboard manages heat effectively during long gaming and workload sessions. Its M.2 Shield Frozr thermal solution protects high‑speed NVMe SSDs by reducing throttling and maintaining stable performance.
Robust Power and Expansion Support
Equipped with Core Boost technology and a digital PWM design with a thickened copper PCB, the MSI MPG B550 GAMING PLUS motherboard optimizes power delivery for multi‑core CPUs. The PCIe 4.0 x16 slot and dual M.2 slots provide fast graphics and storage support. DDR4 Boost improves memory stability and performance under load.
Connectivity and Gamer‑Friendly Features
A built‑in Flash BIOS button lets you update the BIOS quickly with only a USB drive. The pre‑installed I/O shield offers better electromagnetic protection and easier installation. Audio Boost delivers studio‑grade sound for an immersive gaming experience.
SPECIFICATIONS
- Model: MSI MPG B550 GAMING PLUS
- Form Factor: ATX (305 × 244 mm)
- CPU Socket: AMD AM4 (Supports Ryzen™ 5000, 4000 G‑Series, 3000 Series processors)
- Chipset: AMD B550
- Memory Support: DDR4 up to 4400+(OC) MHz, Dual Channel, 4 DIMM slots
- Maximum Memory: Up to 128 GB
- Expansion Slots: 1 × PCIe 4.0 x16, 1 × PCIe 3.0 x16 (x4 mode), 2 × PCIe 3.0 x1
- Storage: 2 × M.2 slots (1 × PCIe 4.0 x4 + 1 × PCIe 3.0 x4), 6 × SATA III 6 Gb/s
- LAN: Realtek® 8111H Gigabit Ethernet
- Audio: Realtek® ALC892/ALC897 7.1‑Channel HD Audio with Audio Boost
- USB (Rear): 1 × USB 3.2 Gen 2 Type‑A, 1 × USB 3.2 Gen 2 Type‑C, 4 × USB 3.2 Gen 1, 2 × USB 2.0
- USB (Front Headers): Various USB 3.2 Gen 1 & USB 2.0 headers
- Display Outputs: HDMI 2.1, DisplayPort 1.4 (requires compatible CPU iGPU)
- Special Features: M.2 Shield Frozr, Core Boost, DDR4 Boost, Flash BIOS Button, Pre‑installed I/O Shield
- Fan & Cooling Headers: Multiple CPU/system fan and pump fan support
- RGB Headers: Addressable and standard RGB headers for lighting synchronization
- Operating System: Windows 11 / 10 compatible













