The FAN‑T4‑R is a replacement cooling fan designed for Cisco Catalyst 9500 series switches. Classified as a Type 4 fan, it provides front‑to‑back airflow to help maintain optimal operating temperatures within the chassis. This fan is part of the standard cooling solution for the Catalyst 9500 platform, ensuring reliable thermal management for high‑performance networking environments. Its design aligns with Cisco’s specifications for front‑to‑back airflow, making it suitable for use in data‑center and enterprise deployments where precise temperature control is critical. The FAN‑T4‑R is a key component for sustaining the performance and longevity of the Catalyst 9500 series.