Cisco EHWIC-4ESG 4-Port Gigabit Switch Module

BRAND NEW. FACTORY SEALED. FULL CISCO WARRANTY INCLUDED. MANUFACTURED BY CISCO. FROM CHICAGO COMPUTER SUPPLY

Overview

The Cisco EHWIC-4ESG is an Enhanced High-Speed WAN Interface Card that integrates four managed Gigabit Ethernet switch ports directly into compatible Cisco Integrated Services Routers. Built for branch offices and SMB networks, it reduces hardware sprawl by combining switching and routing in a single, tightly managed platform.

By embedding Layer 2 switching inside the router, this module lowers the total cost of ownership while improving performance, visibility, and operational simplicity across enterprise WAN deployments.

Key Features

• Four integrated 10/100/1000 Gigabit Ethernet switch ports
• Managed Layer 2 switching within Cisco ISR platforms
• Reduces external switch and cabling requirements
• Supports enterprise routing protocols for resilience
• Designed for branch and SMB network consolidation

Technical Specifications

Device Type: Managed switch module

Model: EHWIC-4ESG

Form Factor: Plug-in module (EHWIC)

Ports: 4 × 10/100/1000 Gigabit Ethernet

Encryption Support: SSL

Routing Protocols: OSPF, HSRP, VRRP

Designed For: Cisco 1900, 2900, and 3900 Series ISRs

Use Cases

This module works best in branch offices where space, power, and management efficiency matter. It allows organizations to connect IP phones, access points, workstations, and local servers directly to the router without installing a separate Ethernet switch. IT teams use it to simplify branch network design, maintain consistent routing and switching policies, and support high-speed LAN connectivity alongside WAN services in a single device.

Why Choose Cisco EHWIC-4ESG 

• Combines routing and switching in one hardware slot
• Reduces overall network hardware costs
• Simplifies branch office network architecture
• Delivers Gigabit performance for local devices
• Built for stable, long-term Cisco ISR deployments

FAQs

What does the EHWIC-4ESG do?

It adds four managed Gigabit Ethernet switch ports directly to a Cisco Integrated Services Router.

Is this a switch or a router module?

It is a switch module that operates inside a router, providing Layer 2 switching with router-based management.

Does it support enterprise routing protocols?

Yes. It works alongside protocols such as OSPF, HSRP, and VRRP to support high-availability designs.

Can it replace an external access switch?

In many branch and SMB environments, yes. It reduces the need for separate low-density switches.

Which environments benefit most from this module?

Branch offices, remote sites, and SMB networks that need compact, integrated switching and routing.