The WS-X4993-F fan tray is a replacement or upgrade cooling component for the Cisco Catalyst 4948e series switches. It ensures adequate airflow through the chassis to dissipate heat generated by the switch’s internal components, helping maintain optimal operating temperatures and prolong hardware life. Proper cooling is critical in network equipment to prevent overheating, reduce the risk of performance degradation, and support uninterrupted network services. This fan tray is engineered to fit seamlessly into the Catalyst 4948e chassis and offers dependable thermal management for enterprise networking environments where uptime and reliability are priorities.












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