The AT-SPTX offers a copper option to extend your network (up to 100 meters). The AT-SPTX is compatible with all the Allied Telesis range of products which have an SFP port. Compact Size Flexible architecture Plug-and-play ease of use Self-locking mechanism Interfaces/Ports: 1 x 1000Base-T Interfaces/Ports Details: 1 x RJ-45 1000Base-T Connectivity Media: Twisted Pair 1000Base-T Distance Support: 328 ft Twisted Pair Data Transfer Rate: 1.25 Gbps Gigabit Ethernet Full-duplex Temperature: 32°F (0°C) to 185°F (85°C) Operating Form Factor: Hot-swappable Compatibility: All the Allied Telesyn range of products support SFP uplink connections.