Signamax Small Form-factor Pluggable (SFP) fiber modules come in an array of options supporting Gigabit Ethernet transmission over either multimode or singlemode fiber cable at distances up to 10 km. They adhere to the IEEE 802.3z standards for Gigabit Ethernet fiber connectivity, and are cost-effective methods of providing changeable Gigabit Ethernet fiber optic interfaces to switches and media converters equipped with a standard SFP port.