Cisco EHWIC-4ESG-P 4 Port Module
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Cisco EHWIC-4ESG-P 4 Ports WAN Interface Card Gigabit Refurbished

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Part Number#: EHWIC-4ESG-P
List Price was: $950.00
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Short Description:
EHWIC-4ESG-P 4 Ports 10/100/1000Base-TX Gigabit Ethernet Switch Enhanced High-Speed WAN Interface Card With Power Over Ethernet (PoE) | Made by Cisco | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

Product Overview of the Cisco WAN Interface Card

In the ever-evolving landscape of networking technology, Cisco has consistently been a key player, providing innovative solutions to meet the growing demands of businesses. One such solution is the Cisco EHWIC-4ESG-P 4 Ports WAN Interface Card (WIC), specifically designed to enhance network connectivity through Gigabit Ethernet.

Understanding WAN Interface Cards

WAN Interface Cards (WICs) play a crucial role in expanding the capabilities of routers by providing additional interfaces for various types of connections. These cards are instrumental in connecting routers to wide area networks (WANs), enabling seamless communication between different networks.

The Role of Gigabit Ethernet

Gigabit Ethernet has become the standard for high-speed networking, offering data transfer rates of up to 1 gigabit per second. The Cisco EHWIC-4ESG-P is equipped with Gigabit Ethernet ports, ensuring rapid data transfer and efficient communication between devices.

Features of Cisco EHWIC-4ESG-P

Gigabit Ethernet Connectivity

The primary feature of the Cisco EHWIC-4ESG-P is its Gigabit Ethernet connectivity. With four Gigabit Ethernet ports, this WAN Interface Card provides the necessary bandwidth for handling large volumes of data, making it suitable for bandwidth-intensive applications.

Power over Ethernet (PoE) Support

Power over Ethernet is a technology that allows electrical power to be transmitted over Ethernet cables, eliminating the need for separate power cables. The EHWIC-4ESG-P supports PoE, enabling the card to power devices such as IP cameras and VoIP phones directly through the Ethernet connection.

Advanced Security Features

Security is a top priority in networking, and the Cisco EHWIC-4ESG-P doesn't disappoint. It comes with advanced security features, including encryption protocols and access control mechanisms, ensuring that data remains secure during transmission.

Scalability and Flexibility

The modular design of the EHWIC-4ESG-P ensures scalability, allowing businesses to expand their network infrastructure as needed. The flexibility of this WAN Interface Card makes it suitable for a variety of applications, from small businesses to large enterprises.

Quality of Service (QoS) Capabilities

In a network where various applications compete for bandwidth, QoS becomes essential. The EHWIC-4ESG-P incorporates QoS features, prioritizing critical applications and ensuring a consistent level of service for users.

Use Cases

The Cisco EHWIC-4ESG-P finds application in a variety of scenarios due to its versatile features. Some notable use cases include:

Enterprise Networking

Large enterprises with diverse networking needs can benefit from the EHWIC-4ESG-P's scalability and Gigabit Ethernet capabilities. It serves as a reliable solution for connecting multiple offices and departments within a corporate network.

Surveillance Systems

The PoE support makes this WAN Interface Card ideal for surveillance systems utilizing IP cameras. By eliminating the need for separate power sources, the EHWIC-4ESG-P simplifies the deployment of surveillance infrastructure.

Voice over IP (VoIP) Implementations

VoIP relies heavily on network stability and bandwidth. The EHWIC-4ESG-P, with its Gigabit Ethernet ports and QoS capabilities, ensures a smooth and reliable communication experience in VoIP implementations.

Data Centers

In data center environments where high-speed connectivity is paramount, the EHWIC-4ESG-P can be a valuable asset. Its ability to handle large volumes of data efficiently contributes to the overall performance of data center networks.

High Performance

The EHWIC-4ESG-P (Enhanced High-Speed WAN Interface Card) is a Cisco WAN (Wide Area Network) interface card that provides high-performance connectivity for Cisco routers. This card provides 4 Gigabit Ethernet ports which can be used to connect to other network devices such as switches, routers, or servers.

This item supports both copper and fiber connectivity, allowing for a flexible and scalable WAN deployment. The Gigabit Ethernet ports provide high-speed data transfer rates of up to 1 Gbps and support various features like VLAN tagging, Quality of Service (QoS), and Link Aggregation Control Protocol (LACP).

This item can support several routing protocols, including Border Gateway Protocol (BGP), Enhanced Interior Gateway Routing Protocol (EIGRP), Open Shortest Path First (OSPF), and Routing Information Protocol (RIP).

This item supports various security features like access control lists (ACLs), secure shell (SSH) secure socket layer (SSL) for remote access, and IP security (IPsec) for VPN connectivity.

This card is designed for use with certain Cisco routers, such as the Cisco Integrated Services Routers (ISRs) and it is also compliant with SFP MSA (Small Form-Factor Pluggable Transceiver Multi-Sourcing Agreement) which is an industry standard that specifies the mechanical, optical, and electrical specifications for SFP transceivers.

General Information about the Cisco EHWIC-4ESG-P

  • Manufacturer: Cisco
  • Model Number or SKU# EHWIC-4ESG-P
  • Product Type: WAN Module

Technical Information

  • Application/Usage: Wide Area Network (WAN)


  • Interfaces/Ports: 4 x 10/100/1000Base-T WAN
  • Interfaces/Ports Details: 4 x RJ-45 10/100/1000Base-T PoE WAN

Performance of Cisco High-Speed WAN Interface Card

  • Connectivity Media: Category 6 UTP 10/100/1000Base-T
  • Data Transfer Rate:
  • 1 Gbps Gigabit Ethernet
  • 100 Mbps Fast Ethernet
  • 10 Mbps Ethernet


  • Compatibility:
  • 1900 Series Integrated Services Router
  • 2901 Integrated Services Router
  • 2911 Integrated Services Router
  • 2921 Integrated Services Router
  • 2951 Integrated Services Router
  • 3925 Integrated Services Router
  • 3945 Integrated Services Router
  • 3925E Integrated Services Router
  • 3945E Integrated Services Router

In summary, the Cisco EHWIC-4ESG-P WAN Interface Card with Gigabit Ethernet is a powerful networking solution that addresses the demands of modern businesses. Its Gigabit Ethernet connectivity, PoE support, advanced security features, scalability, and flexibility make it a versatile choice for various applications. Whether used in enterprise networks, surveillance systems, VoIP implementations, or data centers, the EHWIC-4ESG-P plays a pivotal role in enhancing connectivity and ensuring the smooth flow of data across networks. With proper installation, configuration, and maintenance, this Cisco WAN Interface Card stands as a reliable and efficient component in the ever-expanding world of networking technology.

Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

About Refurbished Products

Refurbished products are typically refurbished by an Original Manufacturer or an affiliate of the manufacturer or 3rd party facility. This product may have minor blemishes due to normal product usage and doesn't necessarily come with documentation and software unless indicated, but has been well tested and generally has never had any defects.

Here, you can check more available conditions of your desired product EHWIC-4ESG-P at a competitive price. We are trying our best to meet your needs on the enterprise-level computer, server, data centre, and networking hardware. You are welcome to ask our live chat or get live representative support over the phone.


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What does ALLHDD.Com warranty cover?

30-days to 3 years warranty:

Replacement or refund. In the case of material defects, we will try to replace the product first. The product will be replaced before the expiration of the original warranty. For any failure of hardware, if we cannot process the replacement of the product(s)/model(s), we will refund the original selling/invoiced price. The shipping costs and sales tax, if any, are non-refundable. ALLHDD retains the right to decide whether the item(s) will process for replacement or refund.

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