The MSI B550-A PRO is a powerful and feature-rich AMD AM4 B550 ATX motherboard. It supports AMD Ryzen 5000 and 3000 series desktop processors, excluding the Ryzen 5 3400G and Ryzen 3 3200G. It is also compatible with AMD Ryzen 4000 G-Series processors. The motherboard offers stable functionality, high-quality assembly, and is designed to solve professional workflows. It features lightning PCIe 4.0, lightning M.2, extended heatsink, USB 3.2 Gen 2, and M.2 heatsink. The MSI B550-A PRO is a great choice for gaming, with its powerful overclocking capabilities and fast USB and PCIe support. It is also compatible with Ryzen 5000-series processors. Overall, it is a reliable and high-performance motherboard for gaming and professional use.