ASUS Pro B550M-C/CSM AM4 Micro-ATX Commercial Motherboard

The ASUS PRO B550M-C/CSM is a commercial motherboard in the micro-ATX form factor that gives business systems a reliable platform for day-to-day work, digital signage, edge servers, and point-of-sale terminals.

Built on the AMD B550 chipset, it accepts Ryzen 3000 processors, Ryzen 4000 G-Series APUs, and Ryzen 5000 CPUs. Four DDR4 DIMM slots allow up to 128 GB of memory, with speeds that can reach 4800 MHz for smooth multitasking. Two M.2 sockets simplify fast storage upgrades: one runs on PCIe 4.0 for top-tier NVMe drives, and the other uses PCIe 3.0 for additional flexibility. Four SATA 6 Gb-s connectors support bulk data drives, and a Realtek 1 Gb Ethernet controller handles network traffic without an add-in card.

The board arrives with an anti-moisture coating, ESD guards, and a rear I/O panel made of stainless steel that resists corrosion. ASUS validates the design for 24 × 7 operation, making it suitable for factories and kiosks that rarely shut down.

ASUS Control Center Express streamlines fleet management: administrators can push BIOS updates, monitor hardware health, and set security policies from a single console. A self-recovering BIOS protects the firmware during updates, and the onboard TPM header enables hardware-based encryption and secure boot for regulated environments.

The micro-ATX layout still leaves room for one PCIe 4.0 × 16 slot for graphics or accelerators, additional expansion slots for capture or RAID cards, and front-panel USB 3.2 Gen 2 Type-A and Type-C ports that move data at up to 10 Gbps. Whether you are outfitting an office, a classroom, or an industrial rack, the PRO B550M-C/CSM delivers the stability and control that professionals expect.

• AMD B550 chipset compatible with Ryzen 3000 CPUs, Ryzen 4000 G-Series APUs, and Ryzen 5000 processors
• Four DDR4 DIMM slots support up to 128 GB of memory at up to 4800 MHz
• Two M.2 sockets: one on PCIe 4.0 and one on PCIe 3.0 for fast NVMe storage
• Four SATA 6 Gb-s connectors for additional hard drives or SSDs
• ASUS Control Center Express for remote monitoring and deployment
• Self-recovering BIOS that restores firmware if an update fails
• Anti-moisture coating, ESD guards, and 24 × 7 validation for harsh environments
• Realtek 1 Gb Ethernet and a stainless-steel rear I/O panel for long-term durability
• USB 3.2 Gen 2 Type-A and Type-C ports provide up to 10 Gbps external bandwidth
• Onboard TPM header enables hardware-based encryption and secure boot