Cisco - XFP transceiver module - 10 GigE - 10GBase-SR - LC/PC multi-mode - up to 984 ft - 850 nm - for P/N: 76-ES+XC-40G3C-RF/ 76-ES+XT-4TG3C-RF/ ME-3600X-24CX-M-RF/ SPA-1X10GE-WLV2-RF