- Supports 10GBASE Ethernet; - Hot-swappable input/output device plugs into an Ethernet X2 port of a Cisco switch or router to link the port with the network; - Provides flexibility of interface choice; - Supports "pay-as-you-populate" model; - Supports the Cisco quality identification (ID) feature that enables a Cisco switch or router to identify whether the module is a Cisco certified and tested X2; - Optical interoperability with respective 10GBASE Xenpak and 10GBASE XFP modules on the same link;