Cisco EHWIC-4ESG — 4-Port Gigabit Ethernet Enhanced High-Speed WAN Interface Card

Expand your Cisco ISR router with integrated Gigabit Ethernet switching — fully refurbished, rigorously tested, and backed by Reef Telecom's industry-leading 10-year warranty. The Cisco EHWIC-4ESG delivers line-rate Layer 2 switching and enterprise-grade LAN connectivity without the cost or complexity of standalone switches.

Key Specifications

• Part Number: EHWIC-4ESG (Non-PoE variant)
• Ports: 4 x 10/100/1000BASE-TX Gigabit Ethernet (RJ-45)
• Switching: Line-rate Layer 2, IEEE 802.1Q VLAN, 802.1p QoS, Spanning Tree Protocol
• QoS: 8 queues per port, Shaped Deficit Weighted Round Robin (SDWRR)
• Security: IEEE 802.1x authentication, dynamic secure port
• Management: SNMP v1/v2/v3, Cisco CLI, Cisco IOS integrated management
• Advanced Features: Intrachassis cascading, Multigigabit Fabric (MGF) for module-to-module communication
• Redundancy: HSRP, VRRP support

Router Compatibility

• Cisco 1900 Series ISR (1921, 1941)
• Cisco 2900 Series ISR (2901, 2911, 2921, 2951)
• Cisco 3900 Series ISR (3925, 3945)

Why Buy from Reef Telecom?

• 10-Year Warranty — The longest in the refurbished telecom industry
• Free Shipping on orders over $300
• Same-Day Shipping on orders placed before 4PM EST
• Fully Tested — Every unit is inspected, tested, and certified before shipping

The EHWIC-4ESG is ideal for small-to-medium businesses and enterprise branch offices that need to consolidate switching and routing into a single Cisco ISR platform — reducing rack space, maintenance costs, and network complexity.

Free ground shipping on orders over $300. Same-day shipping on orders placed before 4PM EST.

All products include our industry-leading 10 Year Warranty backed by Reef Telecom.