FIBER PCI NIC 1000BASE-SX LC MMF 220M LOW PROFILE Transition Networks offers networking connectivity solutions that make the conversion between disparate media types possible. The company designs and markets these media conversion technologies across a broad spectrum of networking protocols including Ethernet, Fast Ethernet, ATM, Gigabit and Token Ring. The company works alongside leading networking vendors to provide conversion technology solutions that offer the necessary adaptations without affecting the performance, nature or appearance of the network to the users or the network devices.