Cisco offers a comprehensive range of pluggable optical modules for the cisco ons family of multiservice platforms. the wide variety of modules gives you flexible and cost-effective options for all types of client interfaces. cisco offers a range of gbics for gigabit ethernet use, a wide variety of sfp modules, xfp modules and has recently introduced sfp+, cxp and cfp pluggable modules. these small, modular optical interface transceivers offer a convenient and cost-effective solution for an array of applications in the data center, campus, metropolitan-area access and ring network, storage area network, and long-haul network.