The MikroTik S-RJ01 is a compact network module that plugs into Gigabit SFP ports, providing a copper RJ45 connection. It establishes a reliable copper Ethernet link over CAT 5 or CAT 6 cables up to 100 meters. Supporting data rates of 10/100/1000 Mbps (1.25 Gbps), it is fully compatible with 10BASE-T, 100BASE-T, and 1000BASE-T standards. With DDM/DOM support, it enables real-time monitoring of parameters such as temperature, voltage, and optical power.