Cisco Systems, Inc. CAB-HD8-ASYNC High Density Cable

The Cisco CAB-HD8-ASYNC High Density Cable is a multi-port breakout cable that links Cisco asynchronous interface modules to external serial devices, delivering eight independent asynchronous serial connections over a single high-density router-side interface. Compatible with HWIC-8A, HWIC-16A, NIM-16A, and NIM-24A modules, it connects to serial modems, console ports, terminal servers, and other serial communication devices. On the router side it uses a high-density multi-port connector, while the device side provides eight asynchronous serial connectors, making it an external connection cable for router interface modules in enterprise routers, network management systems, and remote console access infrastructures. Common replacements include Cisco CAB-OCTAL-ASYNC and Cisco CAB-HD8-ASYNC-FTD. This setup supports multiple serial connections for console access or legacy device integration in enterprise networks.