ASUS Prime B550M-A/CSM AMD B550 Socket AM4 micro ATX

A micro-ATX motherboard built on the AMD B550 chipset for Ryzen processors with the AM4 socket. It includes dual M.2 slots with PCIe 4.0 support, 1 Gigabit Ethernet connectivity, and multiple display outputs via HDMI, D-Sub and DVI. Storage options comprise SATA 6 Gbps connectors alongside the NVMe slots, whilst USB 3.2 Gen 2 Type-A ports provide fast data transfer. The board features Aura Sync RGB headers for lighting synchronisation.

This variant is part of ASUS's Corporate Stable Model (CSM) range, which targets business environments with extended lifecycle support and ASUS Control Center Express software included. The Control Center Express platform enables IT staff to manage multiple devices, schedule BIOS updates remotely, and monitor system health across networked endpoints. The CSM designation offers stability focus and administrative tools rather than consumer-focused overclocking features.