RJ45 Female to Female Coupler <br> Ideal tool for extending your home or office network, ensure a secure and corrosion free ethernet connection by connecting 2 short male network RJ45 cables together and work as one cable.<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> 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> Package Contents:<br> 10 x RJ45 Couplers<br><br> Note:<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.