Cisco Line Card - For Data Networking, Optical NetworkOptical Fiber10 Gigabit Ethernet, 25 Gigabit Ethernet, 40 Gigabit Ethernet, 50 Gigabit Ethernet, 100 Gigabit Ethernet - 10GBase-X, 25GBase-X, 40GBase-X, 100GBase-X - 60 x Expansion Slots - QSFP28, SFP56: