WS-X6724-SFP, WS-X6748-SFP, WS-X6724-SFP=, WS-X6748-SFP=, WS-X6748-GE-TX, WS-X6748-GE-TX=, etc. 

These are all available for us with competitive prices. 

 

 

Catalyst 6500 series mixed media/fiber-based gigabit Ethernet interface modules are used in distribution and core layers,data-center and Metro Ethernet application.This gigabit Ethernet interface module deliver wire-speed switched connectivity and support several switch fabric connections and traffic forwarding options.With a range of port densities and modular physical layer interfaces,this module also offer a choice of packet buffer depths for traffic shaping,and Qos granularity with varying number of queues and drop threshold options.