The et91000sc2 1000 mbps gigabit multimode fiber media converter sc 550m lets you extend a gigabit ethernet network over multimode fiber at distances up to 550m 1804 ft a cost effective solution for connecting a gigabit ethernet 1000base t network to remote network segments over a 1000base lxsx fiber backbone the gbe to mm fiber converter supports full gigabit speeds for ideal network performance and scalability designed to offer a durable and convenient ethernet to fiber solution