TRENDnet''s 4-Pack SFP Single Mode LC Module, model TEG-MGBS10/4, includes four fiber gigabit SFP modules that are compatible with standard SFP slots found on network switches and fiber media converters. Each Single Mode SFP module is equipped with a duplex LC fiber connection interface, and supports gigabit single mode fiber connections for long distance network applications. Fiber Applications Long distance fiber networking for manufacturing, business parks, and school campus applications. Fiber Mode/Distance Multi-Mode transceiver spans distances up to 10km (6.2 mi.) at gigabit speeds. Compatibility Hot-pluggable with an MSA compliant SFP slot and compatible with fiber cables with LC type duplex connectors. Package Contents ? 4 x TEG-MGBS10 ? Quick Installation Guide