Direct Optical Fiber adapted to Desktop? in Networking Posted April 18, 2019 8 hours ago, Acedia said: I don't know what the other guys here are talking about but if it's regular old fibre you just need an PCI-E Card for an "SFP" port and and a fitting SFP module (falsely known as a GBIC), either single mode or multimode. The op would also need to figure out how to authenticate to the isp if what he's doing is connecting direct to isp. Usually it's gonna be pppoe (with some sort of vlan tagging) or DHCP and it might need finagling with configs to get it to actually connect. Unless he means to connect from fiber media from a router or a switch or something then that's whatever he set on those boxes.