Keep copper connectivity available where fiber is not the right fit. The AddOn Networks AR-SFP-1G-T-AO provides 10/100/1,000 Mbps Ethernet in an SFP form factor, letting you add a copper uplink or access connection to compatible switches and network appliances. For teams managing legacy endpoints, mixed media closets, or short-reach links, it preserves port flexibility without forcing a chassis refresh. This module is built for environments where procurement, compatibility, and deployment speed matter. TAA compliance supports government and regulated purchasing requirements, while the 1GBASE-T design helps maintain interoperability with standard twisted-pair cabling. It is a straightforward way to extend service to copper-based devices, reduce stranded switch capacity, and keep network changes contained to the port level. Use it when you need a dependable copper SFP for access-layer expansion, temporary staging, or replacing failed transceiver inventory with a known-fit option. The value is not in novelty; it is in preserving uptime, simplifying sourcing, and keeping the network architecture stable.