<b>RJ45 Coupler</b><br> Black RJ45 Coupler, perfect designed to solve a great extended solution by connecting 2 short network cables to a longer one.<br> Made of high quality environmentally friendly PVC material, with high impact resistance, heat and low temperature resistance etc. advantages. Interactive snap-in buckle design, firm and reliable connection.<br> 8 core pure copper gold-plated conductor, steady signal transmission, superior contact and transmission performance, provides powerful guarantee to high speed data transmission.<br> Thickened PCB Board, Metallic Shielded,Robust and Durable.<br> Compatible with Cat-5, CAT-5e, CAT-6,CAT-6a and CAT-7 Ethernet cords.<br><br> <b>Package Contents:</b><br> 6 x RJ45 Couplers<br><br> <b>Note:</b><br> Can not use with a keystone jack. <br> It is not for a phone cable, but for an Ethernet cable.<br> They are only compatible with RJ45, NOT compatible with RJ11. <br>