Designed for small campus distribution and core layers and for data-center and Web-hosting applications, Cisco Catalyst 6500 Series CEF256 100BASE-FX Ethernet fiber-optic interface modules provide line-rate forwarding. Fiber Module offers enhanced dependability with maximum productivity With 100Base-FX technology, enjoy up to 100Mbps data transfer rate over optical fiber cable Featuring Fast Ethernet port to enhance the data transfer rate by up to 100Mbps for connectivity Optical fiber cable compatible - Spans afar and provides speedy data transmission rates between servers and network components Multi-mode fiber mode support for reliable, fast transfer, sharing, and access to the data and information Fiber Module with optical network application/usage for maximum dependability and convenience