Convert and extend a gigabit ethernet connection over fiber using the gigabit sfp of your choice the et91000sfp2 open sfp fiber media converter converts and extends a gigabit ethernet connection over fiber using the gigabit sfp of your choice a versatile solution for connecting an ethernet 1000base t network to remote network segments over a fiber backbone the media converter features an open sfp slot that lets you choose the msa compliant gigabit sfp that best suits your fiber connecti