The Addon GLC-LH-SM-AO Transceiver is a high-quality SFP module designed for Cisco networking devices. With a distance capacity of 10km, this unit is ideal for extending the reach of your network connections. Compatible with Cisco equipment, this lot of 13 modules is part of the GLC product line, ensuring reliable performance and compatibility. Upgrade your networking infrastructure with this professional-grade transceiver from Addon. Used, untested.