Ehwic 4esg

The phrase 'ehwic 4esg' refers to the Cisco EHWIC-4ESG, a 4-port Gigabit Ethernet Enhanced High-Speed WAN Interface Card (EHWIC) designed for Cisco Integrated Services Routers Generation 2 (ISR G2), such as the 1900, 2900, and 3900 series Router-SwitchCisco.

Market Status & Trends for 2026

The market for the EHWIC-4ESG is currently in a "legacy support" phase, with a clear transition toward newer architectures as of mid-2026 Cisco:

• End-of-Life (EoL): The module reached its official End of Support (EoS) milestone on February 29, 2024. It is no longer eligible for official Cisco vulnerability or security support Cisco.
• Replacement Path: The recommended industrial replacement for 2026 and beyond is the Cisco NIM-ES2-4 module, which is designed for the newer ISR 4000 series routers CiscoRouter-Switch.
• Supply Chain Insight: While the primary market has moved to NIM-based modules, a secondary market for refurbished EHWIC-4ESG units remains active for maintaining legacy infrastructure in branch offices.

Product Insights

• Technical Performance: Provides four 10/100/1000 Mbps Gigabit Ethernet ports with Layer 2 switching, supporting VLAN tagging (802.1Q) and jumbo frames up to 9576 bytes ProvantageCisco.
• Pricing:
• Refurbished EHWIC-4ESG: Currently available on secondary platforms at prices ranging from $157–$160, a significant drop from its original list price of ~$600 BuyrouterswitchItprice.
• New NIM-ES2-4 (Replacement): B2B market prices for the current-gen replacement range from $500 to $2,000, reflecting its position as the standard for modern enterprise networking Alibaba.

I have compiled current B2B listings for both the EHWIC-4ESG and its NIM-based replacement in the files below to assist with sourcing decisions.