MSI B550-A PRO Motherboard
The MSI B550-A PRO Motherboard is a robust and reliable foundation for your AMD Ryzen™ system. Designed to support AM4 socket processors, it offers a perfect balance of performance, durability, and essential features. With support for Dual Channel DDR4 memory, PCIe Gen4, and extensive connectivity options, this ATX motherboard delivers solid performance for gaming, content creation, and everyday computing. Consequently, it is an excellent choice for users seeking a dependable and high-value solution.
Experience Solid Performance and Expandability:
Unleash the full potential of your AMD Ryzen™ processor with the MSI B550-A PRO. This motherboard is engineered to provide a stable and efficient platform for a wide range of AM4 CPUs. It ensures responsive performance for demanding applications and immersive gaming experiences. Moreover, its thoughtful design allows for significant future expandability.
Robust Processor and Memory Support:
The B550-A PRO supports AMD AM4 socket processors, providing a versatile platform for various Ryzen CPUs. It features Dual Channel DDR4 Memory Technology across four DIMM slots, allowing for a maximum system memory capacity of 128GB. This ensures smooth multitasking and efficient handling of memory-intensive applications. Therefore, you can build a powerful system tailored to your needs.
Blazing-Fast PCIe Gen4 and M.2 Storage:
Benefit from lightning-fast data transfer speeds with PCIe Gen4 support. The motherboard includes two PCIe x16 slots, with one supporting Gen4 for maximum bandwidth with compatible CPUs and GPUs. Furthermore, it offers two M.2 slots for high-speed NVMe SSDs, ensuring rapid boot times and quick application loading. Additionally, six SATAIII ports provide ample connectivity for traditional storage devices, offering flexible storage solutions for all your files.
Enhanced Durability and Comprehensive Connectivity:
The MSI B550-A PRO Motherboard is built with a focus on long-term durability and extensive connectivity. Its robust design ensures stable operation under various workloads. Moreover, a wide array of ports and networking capabilities provides seamless integration with your peripherals and network, enhancing your overall computing experience.
Reliable Power Design:
This motherboard incorporates a robust power design to ensure stable and efficient power delivery to your CPU. High-quality components contribute to its overall durability and reliability, providing a dependable foundation for your system. Consequently, you can trust your system to perform consistently even during demanding tasks.
Extensive USB Connectivity:
The B550-A PRO offers comprehensive USB connectivity for all your devices. It includes a front USB 3.2 Gen 1 Type-C port and two USB 3.2 Gen 1 Type-A ports. On the rear, you’ll find a USB 3.2 Gen 2 Type-C port, a USB 3.2 Gen 2 Type-A port, and two USB 3.2 Gen 1 Type-A ports. Additionally, eight USB 2.0 ports (four front, four rear) are available. This ensures ample connections for all your peripherals and external storage.
Integrated LAN and Display Outputs:
Stay connected with the integrated Realtek Gigabit LAN, providing fast and stable wired network connections. For display output, the motherboard includes both DisplayPort and HDMI ports. These allow you to connect to a variety of monitors and displays, supporting high-definition visuals. Therefore, you can enjoy crisp and clear images for both work and entertainment.
User-Friendly Features and Audio Quality:
The MSI B550-A PRO Motherboard integrates several user-friendly features to simplify system management and enhance your audio experience. From high-definition audio to convenient troubleshooting, this motherboard provides a well-rounded and intuitive computing environment.
Immersive HD Audio:
Enjoy crystal-clear audio with the Realtek ALC892/ALC897 Audio Codec, supporting 7.1 CH HD Audio. This provides an immersive sound experience for gaming, movies, and music. The dedicated audio ports on the rear panel ensure high-quality sound output. Therefore, you can fully immerse yourself in your digital content.
BIOS Flashback and TPM Support:
The motherboard includes a convenient BIOS Flashback button, allowing you to update the BIOS without installing a CPU, memory, or graphics card. This simplifies the update process and provides peace of mind. Additionally, it features a TPM (Trusted Platform Module) header, which enhances system security by providing hardware-based encryption capabilities.
Key Specifications:
Processor & Chipset:
- Socket: AM4
- Chipset: AMD® B550 Chipset
- CPU Support: Supports AMD AM4 Socket Ryzen™ Processors (Windows® 10 64-bit support)
Memory & Expansion:
- Memory Channel: Dual
- DIMM Slots: 4 x DDR4
- Max Memory (GB): 128GB
- PCI-E x16 Slots: 2 (Gen4 / Gen3)
- PCI-E x1 Slots: 2
Storage & RAID:
- SATAIII Ports: 6
- M.2 Slots: 2
- RAID Support: 0/1/10 (for SATA storage devices)
Connectivity:
- USB 3.2 Ports (Front): 1 (Gen 1, Type C), 2 (Gen 1, Type A)
- USB 3.2 Ports (Rear): 1 (Gen 2, Type C), 1 (Gen 2, Type A), 2 (Gen 1, Type A)
- USB 2.0 Ports (Front): 4
- USB 2.0 Ports (Rear): 4
- Serial Ports (Front): 1
- Audio Ports (Rear): Realtek® ALC892/ALC897 Codec
- DisplayPort: 1
- HDMI: 1
- LAN: Realtek Gigabit LAN
Physical & Compatibility:
- Form Factor: ATX
- DirectX Version Support: 12
- CrossFire Support: Yes
- TPM (header): 1
- Model Name: B550-A PRO
- UPC/EAN: 824142219362
For more detailed information and support, please visit the official MSI B550-A PRO product page.



















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