The CISCO GLC-LH-SMD-C is a compatible version of the 1000BASE-LX/LH SFP transceiver module, designed to meet or exceed the performance and reliability standards of Cisco's original GLC-LH-SMD module. Operating over a wavelength of 1310 nm, it is engineered for long-distance communication over both single-mode and multimode fibers, with a reach of up to 10 kilometers on SMF and 550 meters on MMF. The module includes Digital Optical Monitoring capabilities, offering network administrators the ability to monitor critical performance parameters in real-time. This hot-swappable, LC connector-equipped module provides an attractive alternative for organizations seeking cost-efficient solutions without compromising on quality or compatibility with Cisco networking equipment.