Network Modules

All Network Expansion Modules, Line Cards, and Port Adapters | New & Refurbished

Network expansion modules, line cards, and port adapters are hardware components used to increase the functionality and capacity of networking devices like routers and switches. Expansion modules add extra ports or features (such as additional fiber connections or PoE support) to a base device. Line cards, typically used in modular chassis-based systems, provide high-density interfaces and processing power, enabling the device to handle more traffic or support advanced services. Port adapters are smaller, often hot-swappable components that offer flexible connectivity options (like different media types or speeds). Together, these components allow networks to scale efficiently and adapt to changing performance or connectivity needs without replacing core infrastructure.