28-1688-02 Cisco 1 x Port Serial Wan Interface Card

The Cisco 28‑1688‑02 Serial WAN Interface Card delivers reliable, high‑quality connectivity for mission‑critical networks, providing a seamless bridge between legacy serial devices and modern Cisco routers. Engineered for durability, this single‑port solution ensures secure, uninterrupted data flow while simplifying network architecture and reducing operational complexity. Its plug‑and‑play design enables rapid installation and effortless integration into existing infrastructures, minimizing downtime and supporting a wide range of serial communication protocols. Ideal for enterprises seeking to extend their WAN reach with confidence, this interface card combines Cisco’s renowned performance and support with a compact, cost‑effective footprint.