SFPs for the Catalyst 3750

Part Number	Description
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