Designed to convert between two gigabit SFP modules, the MC230L Gigabit SFP to SFP Fiber Media Converter from TP-Link extends the distance of an existing gigabit network via fiber optic when integrated with an SFP module. It converts an optical light signal between different SFP modules, like multi-mode and single-mode modules. This device supports 802.3z network standard and comes equipped with an external power adapter.