40 Gbps | Single Mode Fiber | LC | 10 km (6.2 mi) | Lifetime WarrantyThe QSFP-40GE-LR4-ST is a Cisco QSFP-40GE-LR4 compatible fiber transceiver module that has been designed, programmed and tested to work with Cisco brand switches and routers. It delivers dependable 40 GbE connectivity over fiber cable, for 40GBASE-LR4 compliant networks, with a maximum distance of up to 10 km (6.2 mi).Technical Specifications:• Wavelength: 1270nm to 1330nm• Maximum Data Transfer Rate: 40 Gbps• Type: Single Mode• Connection Type: LC Connector• Maximum Transfer Distance: 10 km (6.2 mi)• MTBF: 244,610,583 hours• Power Consumption:• Digital Diagnostics Monitoring (DDM): YesThis QSFP+ fiber module is hot-swappable, making upgrades and replacements seamless by minimizing network disruptions.StarTech.com SFPsAll StarTech.com SFP & SFP+ transceiver modules are backed by a lifetime warranty and free lifetime multilingual technical support. StarTech.com offers a wide variety of SFP modules and direct-attach SFP cables, providing the convenience and reliability you need to ensure dependable network performance.The StarTech.com Advantage