CISCO - SFP (MINI-GBIC) TRANSCEIVER MODULE - 1000BASE-T - RJ-45 - PLUG-IN MODULE - FOR P/N: CWDM-SFP-1490 GLC-GE-100FX SFP-GE-L SFP-GE-L= SFP-GE-S SFP-GE-T= SFP-GE-Z