The ASUS Pro B550M-C/CSM is an ASUS Pro series business/commercial motherboard supporting AMD Ryzen processors (AMD 500-series chipset) on the AM4 socket with DDR4 memory. It targets small business and commercial deployments and provides a comprehensive feature set for its platform tier. BIOS updates deliver stability improvements, security patches, new processor compatibility, and platform optimizations.
Product released: June 1, 2020
Latest firmware version
Version 3634, released September 22, 2025
What's new in version 3634
This BIOS update for Ryzen™ 5000 G-Series /4000 G-Series /3000 G-Series /2000 G-Series systems includes a critical fTPM firmware upgrade, enhancing security and optimizing game compatibility. Before proceeding, back up your BitLocker recovery key and suspend BitLocker encryption in your operating system to prevent potential boot issues.