Multi-Port Serial Cards

A Multi-Port Serial Card is a computer expansion card that adds multiple serial (RS-232) ports to a system, enabling simultaneous connection of several serial devices. These cards are commonly used in industrial settings, server rooms, and businesses where legacy equipment or specialized hardware requires serial communication. Available in various formats like PCI and PCIe, they typically provide between 2 to 32 additional ports and are more reliable than USB-to-Serial adapters for mission-critical applications.