The Cisco 1000 Base T Gigabit Interface Converter (GBIC) is an ideal solution for Catalyst 6500, 4000, 3550, 2950, 3500 XL & 2900 XL Series customers, providing full duplex Gigabit Ethernet connectivity to high-end workstations & between wiring closets over existing copper network infrastructures. This GBIC technology leverages the industrys flexible, standards-based 1000 Base X design, allowing for a simple & low-cost migration path to Gigabit Ethernet. Adding the new 1000 Base T GBIC to the companys range of media transceivers enhances the flexibility of deployment & application for Ciscos comprehensive line of modular & desktop platforms.