The SFP-10G-ER-ST is a Cisco SFP-10G-ER compatible fiber transceiver module that has been designed, programmed and tested to work with Cisco brand switches and routers. It delivers dependable 10 GbE connectivity over fiber cable, for 10GBase-ER compliant networks, with a maximum distance of up to 40 km (24.8 mi).  Technical Specifications:  Wavelength: 1550nm  Maximum Data Transfer Rate: 10 Gbps  Type: Single Mode Fiber  Connection Type: LC Connector  Maximum Transfer Distance: 40 km (24.8 mi) MTBF: 426,514,897 hours  Power Consumption: < 1.6W  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.

• With 10GBase-ER technology, enjoy up to 10Gbps data transfer rate over optical fibre cable
• Optimize the network's performance with 10 Gigabit Ethernet connectivity
• Supports optical fibre cable for durable performance, minimal signal loss, and fast data transfers to greater distances
• With a single wavelength of light, the single mode fibre optic can carry data and transmit audio/video applications over miles of distance