100% Cisco compatible. Guaranteed. The sfp-10g-zr-s-st is a Cisco sfp-10g-zr-s compatible fiber transceiver module that has been designed, programmed and d to work with Cisco brand compatible switches and routers. It delivers dependable 10 GbE connectivity over fiber cable, for 10GBase-ZR compliant networks, with a maximum distance of up to 80 km (49.7 mi). technical Specifications: wavelength: 1550nm maximum data transfer rate: 10 Gbps Type: single mode connection Type: LC maximum transfer distance: 80 km (49.7 mi) MTBF: 426, 514, 897 hours power consumption: low power consumption digital Diagnostics Monitoring (DDM): Yes this SFP+ module is hot-swappable making upgrades and replacements seamless by minimizing network disruptions. Star Tech SFPs all Star Tech SFP & SFP+ transceiver Modules are backed by a star Tech lifetime warranty and free lifetime multilingual technical support. Star Tech offers a wide variety of SFP modules and direct-attach SFP cables, providing the dependability and reliability you need to ensure consistent network performance.