. This type of cable is used to connect a computer to a networking device, such as a router or switch, for configuration and management.
It typically has a DB9 serial connector on one end and an RJ45 connector on the other.
The cable uses a specific "rollover" wiring pinout.
It is compatible with many Cisco devices, including switches, firewalls, and routers.
The cable allows access to the device's command-line interface (CLI).