With the RJ-45 couler you can extend very easy your RJ-45 connection. Put on both RJ-45 jacks of the coupler an RJ45 patch cord on. The signal will be transmit 1 to 1. Works with all RJ-45 patch cords. · Connections: RJ-45 jack to RJ-45 jack · Compatible with 1000BASE-T and below · Pin assignment: 1:1 (8-pin) · Shielding class: STP · According to TIA/EIA 568-C.2 · Housing material: PVC · Color: black