The A903-FAN-F= Cisco Fan Tray with Filter is a high‑performance cooling component engineered for Cisco’s ASR 900 Series routers. This replacement or upgrade part combines a precision‑cut fan assembly with an integrated air filter to ensure reliable airflow while trapping dust and debris that could impair thermal efficiency. Designed for seamless integration into the ASR 900 chassis, the tray supports the router’s high‑density configuration and helps maintain optimal operating temperatures during extended uptime. With its robust construction and compatibility with the ASR 900 platform, this fan tray and filter assembly delivers dependable cooling performance for mission‑critical networking environments.