StarTech.com Cisco SFP-10G-ZR-S Compatible SFP+ Module, 10GBASE-ZR, 10GbE Single Mode (SMF) Fiber Optic Transceiver, 10GE Gigabit Ethernet SFP+ LC Connector, 80km, 1550nm, DDM, Cisco ASR9000 - Lifetime Warranty (SFP-10G-ZR-S-ST) - SFP+ transceivermodul - 10GbE