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EHWIC-4ESG-P
Cisco 3900 Router EHWIC WAN Card EHWIC-4ESG-P
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EHWIC-4ESG-P is an Ethernet module designed to deliver reliable 1Gbps performance for high-density network applications. It features four RJ-45 ports that support standard TCP/IP protocols and is engineered for seamless integration with Cisco routers and similar network devices.
EHWIC-4ESG-P is built to expand data center capacity and upgrade server network interfaces with a compact, modular design that ensures easy installation. Its robust construction and support for advanced networking features like auto-negotiation, wake-on-LAN, jumbo frames, and QoS make it an ideal solution for high-speed connectivity in enterprise environments.
EHWIC-4ESG-P price is $437.00, a 51.4% saving from the Cisco list price of $900.00. EHWIC-4ESG-P is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for EHWIC-4ESG-P for additional pricing. Browse the full Router Ehwic Wan Cards series or explore all Cisco products.
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| EHWIC-4ESG-P |  HWIC-1GE-SFP |  EHWIC-1GE-SFP-CU |  HWIC-3G-GSM |  EHWIC-4ESG | |
|---|---|---|---|---|---|
| Product Type | Network Module / Network Card | Network Module | Network Module | Network Module | Network Module |
| Module Type | Ethernet | SFP | Ethernet | WAN | Ethernet |
| Data Rate | 1G | 1Gbps | 1G | N/A | 1Gbps |
| Connector Type | RJ-45 | SFP | SFP | N/A | RJ-45 |
| Supported Protocols | TCP/IP | TCP/IP | TCP/IP | TCP/IP | TCP/IP |
| Form Factor | Modular | Modular | Modular | Modular | Modular |
| Operating Temperature | 0 to 70°C | 0 to 55°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | N/A | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | N/A | 3.3V | 3.3V | 3.3V |
| Compatibility | Cisco | Cisco | Cisco | Cisco | Cisco, Juniper, Arista, Dell, HP |
| Max Speed | 1Gbps | 1Gbps | 1Gbps | N/A | 1Gbps |
| Supported Features | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS | Auto-negotiation / Jumbo Frames / QoS | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | N/A | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS |
| Power Consumption | N/A | N/A | N/A | N/A | 6W |
| Interface Ports | Ethernet | SFP | SFP | N/A | Ethernet |
| Expansion Slots | EHWIC | EHWIC | EHWIC | EHWIC | EHWIC |
| Product Name | EHWIC-4ESG-P | HWIC-1GE-SFP 1-Port Gigabit Ethernet SFP Interface Card | EHWIC-1GE-SFP-CU | HWIC-3G-GSM | EHWIC-4ESG |
| Height | N/A | N/A | N/A | N/A | 1.5 inches |
| Width | N/A | N/A | N/A | N/A | 4.4 inches |
| Depth | N/A | N/A | N/A | N/A | 3.0 inches |
| Weight | N/A | N/A | N/A | N/A | 1.2 lbs |
The EHWIC-4ESG-P offers excellent performance for high-demand Ethernet switching. It provides reliable connections and easy integration into our network.
We use the EHWIC-4ESG-P for Ethernet switching in our Cisco routers. It performs flawlessly, even during high-traffic periods.
This card provides solid Ethernet switching and is highly reliable. The EHWIC-4ESG-P integrates smoothly with our network infrastructure.
The EHWIC-4ESG-P delivers excellent performance for Ethernet switching. It's easy to configure and works seamlessly with our Cisco router.
The EHWIC-4ESG-P has enhanced our network's reliability. It's a great Ethernet switch card, offering fast and stable connectivity.
The Cisco 3900 Router EHWIC-4ESG-P is an Enhanced High-Speed WAN Interface Card featuring a 4-port Gigabit Ethernet switch with PoE pass-through, designed for Cisco 3900 Series Integrated Services Routers.
The EHWIC-4ESG-P is fully compatible with Cisco 3900 Series routers (ISR 3945, 3925, 3945E, 3925E) running IOS 15.x or later.
The card provides four RJ-45 Gigabit Ethernet ports, each supporting 10/100/1000 Mbps operation.
Yes, the EHWIC-4ESG-P supports PoE pass-through, enabling the connected router chassis to supply PoE to end devices.
When installed in a Cisco 3900 Series router, the EHWIC-4ESG-P delivers up to 2 Gbps of bidirectional forwarding performance.
No additional license is required; once the card is installed in a compatible Cisco 3900 Series router, it operates under the router’s existing feature license.
Power down the router, remove the blank EHWIC slot cover, insert the EHWIC-4ESG-P until it clicks, secure the retention bracket, then power up the router.
The EHWIC-4ESG-P requires Cisco IOS Software Release 15.1(2)T or later with Enhanced IP Services or Security feature sets.
Yes, each of the four built-in Ethernet switch ports supports 802.1Q VLAN tagging, trunking, and access mode configuration.
It supports Cisco IOS CLI, SNMP v2/v3, RMON, and Cisco Prime Infrastructure for centralized configuration and monitoring.
Operating temperature: 0°C to 45°C; storage temperature: −40°C to 70°C; relative humidity: 10%–90% non-condensing.
The card itself draws approximately 5.5W; PoE power delivery is provided by the host router’s power supply according to its PoE budget.
Dimensions: 180 mm x 106 mm (7.1 in x 4.2 in); weight: 0.3 kg (0.66 lb).
The EHWIC-4ESG-P includes a limited lifetime warranty with 90-day Cisco technical support and next-business-day advance hardware replacement.
Ideal for small–medium branch offices requiring integrated Gigabit LAN switching, PoE for IP phones or wireless APs, and resilient WAN connectivity.
United States