This Avaya/Nortel 108659210 compatible GBIC transceiver provides 1000Base-LX throughput up to 10km over FALSE at a wavelength of 1310nm using a SC connector. It is guaranteed to be 100% compatible with the equivalent Avaya/Nortel transceiver. This easy to install, hot swappable transceiver has been programmed, uniquely serialized and data-traffic and application tested to ensure that it will initialize and perform identically. It is built to meet or exceed the specifications of Avaya/Nortel, as well as to comply with MSA (Multi-Source Agreement) standards to ensure seamless network integration. All of our transceivers are Trade Agreements Act (TAA) compliant. We stand behind the quality of our products and proudly offer a limited lifetime warranty.