The Cisco Catalyst 6880-X provides flexibility to build desired port density through two versions of base chassis along with optional port cards. The base chassis comes with 16 10G/1G ports. Each system can be built up to 80 ports in 16-port increments. The port interface on the base module and the port cards supports both 10 Gigabit Ethernet and 1 Gigabit Ethernet speeds allowing customers to use their investment in 1 Gigabit Ethernet SFP and upgrade to 10 Gigabit Ethernet SFP+ when business demands change, without having to do a comprehensive upgrade of the existing deployment. The port cards are hot swappable.