1000 Mbps (1 Gbps) | Single & Multi Mode Fiber | LC | 10 km (6.2 mi) | Lifetime WarrantyThe SFPGLCLHSMST is a Cisco GLC-LH-SM compatible fiber transceiver module that has been designed, programmed and tested to work with Cisco brand switches and routers. It delivers dependable 1GbE (1000 Mbps) connectivity over fiber cable, for 1000BASE-LX/LH compliant networks, with a maximum distance of up to 10 km (6.2 mi). Technical Specifications: Wavelength: 1310 nm Maximum Data Transfer Rate: 1.25 Gbps Type: Single Mode / Multimode Fiber Connection Type: LC Connector Maximum Transfer Distance: 10 km (6.2 mi) - SM / 1 km (0.6 mi) - MMMTBF: 3,092,408 hours Power Consumption: Less than 1 Watt Digital Diagnostics Monitoring (DDM): No 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. The StarTech.com Advantage- 100% CISCO GLC-LH-SM COMPATIBLE: Works with Cisco switches like IE3400, IE3300, IE3200, ME1200, ME2400 and others- TECHNICAL SPECS: 1000BASE-LX/LH- 1 Gbps