Cat3750 48 T PoE +4 SFP Std. Image REMANUFACTURED CD-3750-EMI= Enhanced Multilayer Image upgrade for 3750 FE models CD-3750G-48EMI= Enhanced Multilayer Image upgrade for 48-port 3750 GE models R-CD-3750-EMI= Enhanced Multilayer Image upgrade for 3750 FE models CAB-STACK-50CM= Cisco StackWise 50CM Stacking Cable CAB-STACK-50CM Cisco StackWise 50CM Stacking Cable CAB-STACK-1M Cisco StackWise 1M Stacking Cable CAB-STACK-1M= Cisco StackWise 1M Stacking Cable CAB-STACK-3M Cisco StackWise 3M Stacking Cable CAB-STACK-3M= Cisco StackWise 3M Stacking Cable CAB-STACK-50CM-NH Cisco StackWise 50CM Non-Halogen Lead Free Stacking Cable CAB-STACK-50CM-NH= Cisco StackWise 50CM Non-Halogen Lead Free Stacking Cable CAB-STACK-1M-NH Cisco StackWise 1M Non-Halogen Lead Free Stacking Cable CAB-STACK-1M-NH= Cisco StackWise 1M Non-Halogen Lead Free Stacking Cable CAB-STACK-3M-NH Cisco StackWise 3M Non-Halogen Lead Free Stacking Cable CAB-STACK-3M-NH= Cisco StackWise 3M Non-Halogen Lead Free Stacking Cable CAB-STACK-50CM-RF Cisco StackWise 50CM Stacking Cable REMANUFACTURED CAB-STACK-1M-RF Cisco StackWise 1M Stacking Cable REMANUFACTURED CAB-STACK-3M-RF Cisco StackWise 3M Stacking Cable REMANUFACTURED GLC-GE-100FX= 100BASE-FX SFP for GE SFP port on . GLC-T= 1000BASE-T SFP GLC-3750V2-FX12 12 units of GLC-FE-100FX for 3750v2 GLC-3750V2-FX24 24 units of GLC-FE-100FX for 3750v2 CWDM-SFP-1470= CWDM 1470 NM SFP Gigabit Ethernet and 1G/2G FC CWDM-SFP-1490= CWDM 1490 NM SFP Gigabit Ethernet and 1G/2G FC CWDM-SFP-1510= CWDM 1510 NM SFP Gigabit Ethernet and 1G/2G FC CWDM-SFP-1530= CWDM 1530 NM SFP Gigabit Ethernet and 1G/2G FC CWDM-SFP-1550= CWDM 1550 NM SFP Gigabit Ethernet and 1G/2G FC CWDM-SFP-1570= CWDM 1570 NM SFP Gigabit Ethernet and 1G/2G FC CWDM-SFP-1590= CWDM 1590 NM SFP Gigabit Ethernet and 1G/2G FC CWDM-SFP-1610= CWDM 1610 NM SFP Gigabit Ethernet and 1G/2G FC DWDM-SFP-3033= DWDM SFP 1530.33 nm SFP (100 GHz ITU grid) DWDM-SFP-3425= DWDM SFP 1534.25 nm SFP (100 GHz ITU grid) DWDM-SFP-3582= DWDM SFP 1535.82 nm SFP (100 GHz ITU grid) DWDM-SFP-3661= DWDM SFP 1536.61 nm SFP (100 GHz ITU grid) DWDM-SFP-3819= DWDM SFP 1538.19 nm SFP (100 GHz ITU grid) DWDM-SFP-4214= DWDM SFP 1542.14 nm SFP (100 GHz ITU grid) DWDM-SFP-6141= DWDM SFP 1561.42 nm SFP (100 GHz ITU grid) CWDM-SFP-1610-RF CWDM 1610 NM SFP Gigabit Ethernet & 1G/2G FC REMANUFACTURED DWDM-SFP-3977-RF DWDM SFP 1539.77 nm SFP (100 GHz ITU grid) REMANUFACTURED XENPAK-10GB-SR-RF 10GBASE-SR XENPAK Module REMANUFACTURED XENPAK-10GB-CX4-RF 10GBASE-CX4 XENPAK Module REMANUFACTURED