AdderSFP-CATX-RJ45is an Active Gigabit Ethernet CATx SFP Transceiver for use with theAdderLink INFINITY Series. TheSFP-CATX-RJ45extends up to, but is not limited to, a 100 metre cable length. If you need to extend further, simply add a 1GbE network device to achieve an additional 100 metres.ADDERLink Infinity ALIF 1002andall ALIF Dual variantsprovide a choice of link connections. Each supports Copper-Based Gigabit Ethernet (1000Base-T) as well as Fibre Channel over Ethernet (FCoE). ALIF (1002) and ALIF Dual units provide a single system port (CATx) as standard on the right