Cisco WS-C6503-E-FAN enterprise networking (router/Catalyst switch/UCS families) Datacentre Switch

The Cisco WS-C6503-E-FAN is a fan tray for the Catalyst 6503-E chassis, the enhanced 3-slot enclosure in the Catalyst 6500 modular switching platform. The fan tray provides the forced-air cooling the chassis’ power supply and line cards depend on, and a failed or missing tray typically triggers alarms and, on some supervisor firmware, throttled operation to protect the hardware, making it a component that needs prompt like-for-like replacement rather than one that can be safely deferred. The 6503-E’s compact 3-slot form factor is commonly deployed in smaller wiring closets or edge sites needing Catalyst 6500-class capability without the larger chassis sizes. Tech-Star (UK-based, shipped worldwide) supplies Cisco chassis components as spares. Confirm the exact 6503-E (enhanced) chassis variant before ordering.