The MikroTik S-31DLC20D is a single mode SFP transceiver rated for Gigabit Ethernet links up to 20km, giving longer reach than standard short haul optics for connecting sites further apart over fiber. It is commonly paired with MikroTik switches and routers but works with most SFP compatible equipment from other brands too. Antofity Concepts supplies this transceiver for longer distance Gigabit fiber links across Kenya.