Cisco SFP-1G-T-X 1000BASE-T SFP Transceiver | 10G Port, Enterprise — SFP-1G-T-X

Keep copper-based access in service while your switching fabric moves forward. Cisco’s SFP-1G-T-X is a 1000BASE-T, rate-adapting SFP transceiver designed for use in 10G ports, giving infrastructure teams a practical way to connect 1G copper devices without changing the surrounding architecture. That matters in real networks. Not every endpoint, access switch, or edge device is ready for fiber, and not every refresh justifies replacing stable copper runs. This module lets you extend the life of existing infrastructure while maintaining compatibility with higher-speed Cisco ports. For procurement teams, the value is straightforward: fewer forced upgrades, less disruption, and a cleaner migration path. For architects, it is a precise fit for mixed-speed environments where port flexibility is more important than generic transceiver compatibility. In deployments where uptime, standardization, and controlled spend all matter, this is the kind of module that earns its cost. Ideal For Connecting 1G copper endpoints to 10G-capable Cisco switches Supporting phased migration from copper access to higher-speed switching Preserving existing structured cabling in enterprise network refreshes Adding flexible port options in mixed-speed data center or campus networks Why This Product 1 Rate-adapting design supports 1G copper in 10G ports 2 Better fit for migration projects than fixed-speed modules 3 Preserves existing RJ-45 cabling and endpoint investments 4 Cisco compatibility supports standardized enterprise deployments