Catalyst 4500-X 16 Port 10G IP Base, Front-to-Back, No P/S WS-C4500X-F-16SFP+ Catalyst 4500-X 16 Port 10G IP Base, Back-to-Front, No P/S WS-C4500X-24X-ES Catalyst 4500-X 24 Port 10G Ent. Services, Frt-to-Bk, No P/S WS-C4500X-24X-IPB Catalyst 4500-X 24 Port 10G IP Base, Front-to-Back, No P/S WS-C4500X-24XES-RF Cat 4500-X 24pt 10G Ent Svcs,Frt-to-Bk, No PS REMANUFACTURED WSC4500XF16SFP+-RF Cat 4500-X 16 pt 10G IPBase,Back-to-Fr,No P/S REMANUFACTURED WS-C4500X16SFP+-RF Catalyst 4500-X 16port 10G IPBase,Frnt-to-Bck REMANUFACTURED WS-C4500X32SFP+-RF Catalyst4500X32pt10G IPBase,Frnt-to-Bak,NoP/S REMANUFACTURED C4KX-FAN-F-RF Catalyst 4500X back to front cooling fan REMANUFACTURED WS-C4500X-40XES-RF Catalyst4500X40pt10G EntServiceFrt-to-BkNoP/S REMANUFACTURED C4KX-PWR-750ACF-RF Catalyst4500X750W ACback2front coolingPwrSup REMANUFACTURED C4KX-FAN-R-RF Catalyst 4500X front to back cooling fan REMANUFACTURED WSC4500XF32SFP+-RF Cat4500-X 32-P 10G IPBase,Back-to-Front,NoP/S REMANUFACTURED C1-C4500X-F-16SFP+ Cisco ONE Catalyst 4500-X 16 Port 10G IP Base, Back-to-Front C1-C4500X-16SFP+ Cisco ONE Catalyst 4500-X 16 Port 10G IP Base, Front-to-Back C1-C4500X-24X-IPB Cisco ONE Catalyst 4500-X 24 Port 10G IP Base, Front-to-Back C1-C4500X-F-32SFP+ Cisco ONE Catalyst 4500-X 32 Port 10G IP Base, Back-to-Front C1-C4500X-32SFP+ Cisco ONE Catalyst 4500-X 32 Port 10G IP Base, Front-to-Back C4KX-PWR-750DCR-RF Cat4500X 750W DC front-backCoolinPowerSupply REMANUFACTURED