Cisco FAN-T1 enterprise networking (router/Catalyst switch/UCS families) Datacentre Switch

The Cisco FAN-T1 is a replacement fan module built for the Catalyst 3650-48PS and 3650-24PS Series PoE switches. It slots into the switch’s rear fan tray to provide the forced-air cooling these fixed-configuration access switches rely on, particularly in PoE+ configurations where the internal power supply and PoE controller generate significant heat under sustained load. A failed or degraded fan is one of the more common reasons a Catalyst 3650 throttles performance or triggers a thermal alarm, so keeping a genuine spare on hand shortens the time a switch spends running in a compromised state. The 3650 Series remains widely deployed as a stackable access-layer switch in schools, offices and campus networks, and fan modules are a routine wear item given they run continuously for the life of the unit. Confirm the exact 3650 model variant before fitting, since fan tray designs vary across the wider Catalyst 3650/3850 family. Tech-Star (UK-based, shipped worldwide) stocks Cisco components to support ongoing network maintenance.