Cisco ISR-1100-POE4 by Cisco is a PoE expansion module designed for the ISR 1100 series routers. It provides four Gigabit Ethernet LAN ports with integrated Power over Ethernet capability.

This module delivers power to connected devices using IEEE 802.3af/at standards, enabling direct device connectivity from the router. With four RJ45 interfaces, it is suited for small deployments requiring PoE without the need for separate power injectors or a dedicated PoE switch.

The module draws power from the host router’s internal power supply and is ideal for powering devices such as IP phones, wireless access points, and security cameras at the network edge. It is commonly used in branch offices, retail locations, and remote sites where space and simplicity are priorities.