Cisco 1900 Series

The Cisco 1900 Series Integrated Services Routers (ISR), primarily the 1921 and 1941 models, are currently in their final lifecycle stage. As of May 31, 2025, these devices will reach their Last Date of Support (LDoS), meaning Cisco will no longer provide technical assistance, firmware updates, or security patches CiscoRouter-Switch.

Key Product Insights

* Legacy Architecture: Launched in 2009 as the G2 (Generation 2) successor to the 1800 series, these routers were designed for secure, modular WAN environments with concurrent services up to 15 Mbps Cisco.

* Modularity: Features EHWIC slots which are backward compatible with HWIC and WIC/VWIC cards, allowing for flexible connectivity options Cisco.

* Software Licensing: Utilized the Cisco IOS Universal Image, where advanced features like security or data acceleration were unlocked via software activation keys rather than separate image files Cisco.

Market Trends & Sourcing

* End of Life Impact: With the upcoming May 2025 support cutoff, enterprise organizations are rapidly decommissioning 1900 series hardware in favor of SD-WAN-ready platforms like the Catalyst 8200 or ISR 1000/1100 series Cisco.

* Secondary Market: Refurbished units are widely available and cost-effective for homelabs and certification study (CCNA/CCNP). Used Cisco 1921 models typically retail for $40–$80, while the 1941 ranges from $60–$120 Cisco.

* Migration Path: Cisco officially recommends upgrading to the Catalyst 8200 Edge Platforms for higher throughput and modern security features, or the ISR 1100 Series for small branch offices Cisco.

I have compiled a list of available refurbished Cisco 1900 series routers and their modern Catalyst 8200 replacements for your review.