Female to Female RJ45 coupler keystone jack can be used to connect two CAT6 ethernet cables, compatible with Cat5, Cat5e ethernet cables | Gold plated contacts of RJ45 coupler which prevent the oxidization and easy snap-in retaining clip will ensure a secure and corrosion free connection. Fire-retardant high-impact ABS plastic housing provides a safe installation. | RJ45 ethernet couplers keystone jack fit all standard keystone wall plates and patch panels. | RJ45 keystone jack inline coupler meets Category 6 performance and in compliance with the TIA/EIA 568-C.2 standard. | Rj45 coupler female to female provides a full range of solutions for voice, home networking, home office, audio, video and more. Plug and use, no tool is required.