CISCO - WS-X4583 - Rackmount, Catalyst 4503, 19 Inch

CISCO - WS-X4593 - Catalyst 4503 Fan Tray

CISCO - WS-X4596 - Catalyst 4506 Fan Tray

CISCO - WS-X4612-SFP-E - CATALYST 4500 E-SERIES 12-PORT GE

CISCO - WS-X4593= - Catalyst 4503 Fan Tray (Spare)

CISCO - WS-X4596-E - Catalyst 4506-E Fan Tray

CISCO - WS-X4648-RJ45V-E - Catalyst 4500 E-Series 48-Port PoE 802.3af 10/100/100

CISCO - WS-X4506-GB-T - Catalyst 4500 6-Port 10/100/1000 PoE or SFP (Optional)