Cisco 10GBASE-SR S-Class SFP Module for 10 Gigabit Ethernet Deployments, Hot Swappable, 5-Year Standard Warranty (SFP 10G SR S=), Fiber optic, 10000 Mbit/s, SFP+, LC, PC, SR, 850 nm, Transceiver, Fiber Optic, 10 GBps, TCP/IP, duplex, Ethernet, LC-DUP, Hot-Swap/Hot-Plug, MDI Port Detection, Cisco Catalyst, Plug-In Module, 3 U