2948G, 2950, 2960, 2970G, 3550, 3750, 3750G and E500G. 2948G : WS-C2948G-GE-TX. 3750 : WS-C3750-24TS-S, WS-C3750-24TS-E, WS-C3750-48TS-S, WS-C3750-48TS-E. This Blower Fan is Compatible with these Cisco Catalyst Switches: Note: This fan is NOT compatible and will NOT work with these 3/4 wire Cisco Catalyst Switches .
eBay