TRENDnet's SFP Single Mode LC Module, model TEG-MGBS20, is compatible with standard SFP slots found on network switchesand fiber media converters. Each TEG-MGBS20 single mode fiber SFP is equipped with a duplex LC fiber connection interface, supports high-speed data rates up to 1.25G bps, and supports gigabit single mode fiber connections for long distance networkapplications up 20km ( 12.4 mi. ).