Router Cisco C1121X-8P — wired router, 8 RJ-45 ports, Fast/Gigabit Ethernet, 8 GB RAM, PoE, 100–240V

Cisco C1121X-8P is a wired router designed for small offices and branch networks that require a combination of Fast Ethernet and Gigabit Ethernet connectivity. It provides eight RJ-45 LAN ports supporting 10/100/1000Base-T(X) speeds, 8 GB of internal memory and a silver metal housing. The device supports multiple power options including PoE, DC and 100–240 V AC input (50/60 Hz), enabling flexible installation in varied network environments.

Advantages

The router delivers mixed-speed Ethernet on eight RJ-45 ports allowing both Fast Ethernet and Gigabit devices to connect without additional switches. Its 8 GB internal memory supports stable routing and security services, while the metal housing ensures durability and thermal stability. Multiple power choices including Power over Ethernet simplify deployment where centralized PoE switches or limited AC outlets are present.

Suitable for

• Small office and home office (SOHO) networks
• Branch network connectivity with mixed-speed endpoints
• Deployments requiring Power over Ethernet for IP phones or access points
• Environments with constrained rack or desk space

Key specifications

• LAN ports: 8 × RJ-45 supporting 10/100/1000 Mbps
• Ethernet interface: Gigabit Ethernet and Fast Ethernet
• Internal memory: 8 GB RAM
• Chassis: metal, silver finish
• Power options: PoE, DC input and 100–240 V AC, 50/60 Hz

How to use

Install the Cisco C1121X-8P on a stable surface or in a compact rack space and connect the WAN uplink to the designated WAN port. Connect LAN devices to the RJ-45 ports and, if needed, power compatible devices via PoE-capable ports. Configure network interfaces, routing policies and security features through the Cisco IOS XE management interface or supported management tools. Ensure firmware and software images are kept up to date for stability and security.

Usage recommendations

For reliable operation, place the router in a ventilated area away from direct heat sources, use appropriate surge protection on AC or DC power inputs, and follow Cisco guidance for PoE budgeting when connecting multiple powered devices. Regularly back up configuration files and apply software updates provided by Cisco to maintain performance and security.