D-Link’s 1G SFP Module series are hot-swappable Small Form Pluggable (SFP) transceivers that provide connectivity over fiber-optic cable. These fiber-optic transceivers have standard duplex LC connectors for connection compatibility. These transceivers can extend link distances up to 2 km, which is a major improvement over the 100 m limit of Ethernet cables. The SFP form is ideal for telecom enterprises which often require switches with SFP fiber modules to have flexible connections. The transceivers’ fiber link option is an excellent solution for use with fiber networks for large businesses or campuses.