1000 Mbps (1 Gbps) | Multi Mode Fiber | LC | 550 m (1804 ft) | Lifetime WarrantyThe SFPGLCSXMMST is a Cisco GLC-SX-MM 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-SX compliant networks with a maximum distance of up to 550 m (1804 ft). Technical Specifications: Wavelength: 850 nm Maximum Data Transfer Rate: 1.25 Gbps Type: Multi Mode Fiber Connection Type: LC Connector Maximum Transfer Distance: 550 m (1804 ft) MTBF: 3092408 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% compatibility with Cisco GLC-SX-MM guaranteed- StarTech.com SFP modules are backed by a lifetime warranty- Meets or exceeds OEM specifications and Multi-Source Agreement (MSA) industry standards