StarTech.com Dell EMC SFP-100M-FX Compatible SFP Module - 100BASE-FX - 100MbE SFP Multi-Mode Fiber MMF / Single Mode Fiber SMF Optic Transceiver Optic Transceiver 2km DDM - Dell EMC SFP-100M-FX Compatible SFP - 100BASE-FX 100 Mbps - 100MbE Module - 100Mb Ethernet SFP 1310nm Single Mode (SMF)/ Multi Mode (MMF) Transceiver - 2km (1.2mi) - LC Connector DDM - Hot-Swappable & MSA Compliant - Lifetime Warranty