This item is a service module for Cisco Catalyst 3K-X series switches. It provides two 10 Gigabit Ethernet ports for high-speed connectivity to other devices. These ports can be configured for use as either SFP+ or 10GBASE-T ports, depending on the type of transceiver modules that are installed. The module is designed to be used with Cisco Catalyst 3K-X series switches and is inserted into the switch's modular expansion slot. The C3KX-SM-10G helps to provide more flexibility and scalability for network deployments that require high-speed connectivity. It enable the switch to support higher bandwidth requirements for data center and enterprise environments, Additionally it also gives the ability to add more 10G ports to the switch which are required for connecting to other devices like servers, storage and other networking equipment.