Question: what type of cable is used to connect to a copper sfp?
Answer: Copper SFP supports 1000Mbps over Cat5 cables with RJ45 connector interface, which allows communications over the Cat5 unshielded twisted-pair copper cable of link lengths up to 100 m. It supports the standard of 10/100BASE-T, 1000BASE-T, 10/100/1000BASE-T transceivers.