The 455886-B21-ST is a HP 455886-B21 compatible fiber transceiver module that has been designed, programmed and tested to work with HP brand switches and routers. It delivers dependable 10 GbE connectivity over fiber cable, for 10GBase-LR compliant networks, with a maximum distance of up to 10 km (6.2 mi). Technical Specifications: Wavelength: 1310nm Maximum Data Transfer Rate: 10 Gbps Type: Single Mode Fiber Connection Type: LC Connector Maximum Transfer Distance: 10 km (6.2 mi) MTBF: 1,386,624,697 hours Power Consumption: < 1.3W Digital Diagnostics Monitoring (DDM): Yes This SFP+ fiber module is hot-swappable, making upgrades and replacements seamless by minimizing network disruptions. StarTech.com SFPs All 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.