When copper runs out of distance, this media and rate converter gives you a direct path to multimode fiber without replacing the access layer. The Allied Telesis AT-MMC2000/SC-960 converts 10/100/1000T to 1000SX/SC, making it a practical fit for extending Ethernet links across buildings, closets, and controlled network segments. The SC optical interface is a strong match for environments that already standardize on SC-based multimode fiber. For federal and multi-region deployments, the TAA-compliant designation helps align the product with procurement requirements while keeping the design focused on one job: clean copper-to-fiber conversion at gigabit speeds. This model is well suited to teams that value compatibility and disciplined infrastructure spending. Instead of overbuilding with a larger switch refresh, you can preserve stable copper endpoints, add fiber where distance or isolation demands it, and keep the network architecture consistent. That makes the converter a precise tool for extending service life in enterprise and government networks.