The Cisco Multi-rate XFP Module offers customers a variety of 10 Gigabit Ethernet and Packet-over-SONET/SDH (POS) connectivity options for data center, enterprise wiring closet, and service provider transport application.The Multi-rate XFP Module supports both 10GBASE-ZR Ethernet applications and OC-192/STM-64 long-reach long reach (LR-2) POS applications.