The Cisco Catalyst C6816-X-LE is a fixed-configuration aggregation switch from the Catalyst 6840-X Series, designed for enterprise campus core and distribution layers. This 2-Rack-Unit (2RU) managed switch features 16 native 10 Gigabit SFP+ ports that also support 1 Gigabit Ethernet and 100BASE-FX fiber-optic modules, providing flexible connectivity options .