Get on Amazon.com : http://www.amazon.com/gp/product/B007UR0ENO?tag=clothingattes-20<br /><br />StarTech.com Cisco Compatible Gigabit Fiber SFP Transceiver Module SM LC with DDM - 20km (Mini-GBIC)<br /><br />Replacing defective or damaged SFPsMini GBICs in MSA or Cisco compliant equipment <br />Equipped with an industry standard single-mode LC interface this module can extend your network connectivity up to 20 km <br />Data rates up to 125 Gbps <br />Supports distances up to 20 km 124 miles <br />Complies with SFP Multi-Source Agreements standards MSA <br />Compatible with Cisco equipment