3900-FANASSY Cisco Faceplate Fan Assembly

3900-FANASSY Overview

The Cisco 3900‑FANASSY Fan Assembly (with Faceplate) is a genuine cooling module and replacement fan tray designed for Cisco 3900 Series Integrated Services Routers such as the Cisco 3925, 3925E, 3945, and 3945E ISR platforms. It’s a critical internal cooling component that helps maintain proper airflow and temperature control inside the router chassis, preventing overheating and ensuring reliable performance during extended operation. This assembly typically includes multiple fans and a front faceplate that integrates into the router’s airflow design, and it can be installed as a spare or replacement part to keep your ISR stable and running efficiently