Ultimate Guide to SFP transceiver modules — Switch SFP Ltd
Amazon.com: TRENDnet SFP to RJ45 Mini-GBIC Single Mode LC Module, TEG-MGBS40, Up to 40 km, Single-Mode Fiber, LC Connector-Type, Connect with a Standard Mini-GBIC Slot, Duplex LC Connector, Lifetime Protection : Electronics
What fiber connector for sfp?
SFP Connector Types Wiki - SFP+ Connector vs QSFP Connector vs More - QSFPTEK Blog