AMD B550 (Ryzen AM4) micro ATX business motherboard with enhanced security, reliability and manageability. Dual M.2, PCIe 4.0, 1 Gb Ethernet, dual DP/HDMI, SATA 6 Gbps, USB 3.2 Gen 2 Type-C®.

• AMD AM4 socket: Ready for Ryzen™ 5000 Series/ 4000 G-Series/ 3000 Series Desktop Processors
• Ultrafast connectivity: Dual M.2, PCIe 4.0, 1 Gb Ethernet, USB 3.2 Gen 2 Type-C®
• ASUS-exclusive self-recovering BIOS technology for automatic system BIOS recovery from a verified backup
• Innovative moisture-resistant coating to protect the motherboard from harsh environments

ASUS Pro business motherboards provide enhanced features to smooth your IT operations, including comprehensive system protection, 24/7 stability and reliability and an improved management suite for easier customization. Known as the world's biggest and best-known motherboard brand, ASUS provides world-class after-sales service and guaranteed long-term availability to maximize your investment over the product life cycle and offers a high-quality, TCO-optimized solution for your business computing-needs.

ASUS Corporate Stable Model

ASUS Corporate Stable Model (CSM) is a commercial program designed to provide stable and reliable motherboards. Offering up to 36-month product lifecycle support and 6-month end-of-life notice to allow sufficient lead times for your organization to get ready for product transitions. Each purchase of an ASUS CSM motherboard comes with ASUS Control Center Express - server-grade IT management software.

ASUS Control Center Express

ASUS Control Center Express is an integrated IT monitoring and management software designed to deploy faster, simplify IT operations and improve productivity with comprehensive control and user-friendly functions. ASUS Control Center Express is compatible with over 100 ASUS motherboards to provide a high-quality, TCO-optimized solution for your business needs.

Internationally Certified Business Motherboard

ASUS business motherboards are enterprise proven with leading quality that exceeds industry standards. Certified by multiple international safety and environmental organizations, ASUS business motherboards provide a safe, secure and sustainable solution, making them the ideal choice for your business.

ASUS ShieldEnhances system security from bottom to top

ASUS Self-recovering BIOS

ASUS-exclusive BIOS protection technology automatically recovers the system BIOS with a verified backup in the event of an update failure, preventing the need to replace or reinstall hardware.

ASUS ShieldEnhances system security from bottom to top

ASUS Self-recovering BIOS

ASUS-exclusive BIOS protection technology automatically recovers the system BIOS with a verified backup in the event of an update failure, preventing the need to replace or reinstall hardware.

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ASUS Secure Boot

ASUS business motherboard is set to check the firmware and signature of each piece of boot software.

Trusted Platform Module (TPM)

Hardware-based security offers better data protection, enhances network security, protects digital identities and ensures platform integrity.

Certified NIST SP 800-147

ASUS business motherboard is certified by the national computer security standards.

• Ryzen 3
• Ryzen 5
• Ryzen 7
• Ryzen 9
• Ryzen 3 PRO
• Ryzen 5 Pro
• Ryzen 7 PRO
• Ryzen 9 PRO
• Athlon
• Athlon PRO

• DIMM
• UDIMM

• 2133 MHz
• 2400 MHz
• 2666 MHz
• 2800 MHz
• 3000 MHz
• 3200 MHz
• 3333 MHz
• 3466 MHz
• 3600 MHz
• 3733 MHz
• 3866 MHz
• 4000 MHz
• 4133 MHz
• 4266 MHz
• 4400 MHz
• 4600 MHz
• 4800 MHz

• 0
• 10
• 1

• PRO B550M-C/CSM Desktop Motherboard
• 1 x ACC Express Activation Key Card
• I/O Shield
• 2 x SATA 6Gb/s Cable(s)
• 1 x Supporting DVD
• User Manual
• 3 x M.2 SSD Screw Package(s)
• 2 x M.2 SSD Hex Screw Packages