RJ45 coupler is helpful for extending ethernet connection by connecting 2 short network cables together. This 8P8C female to female ethernet coupler jack is compatible with Cat7, Cat6, Cat5e, Cat5 network. RJ45 inline jack coupler meets category 6 performance in compliance with the TIA/EIA 568-C.2 standard; It is RoHS compliant. Fast speed: the RJ45 ethernet extension connector can speed up to 10 Gbps for connecting Cat7/Cat6 ethernet cable. Cat5 coupler with nickel plated contacts and easy snap-in retaining clip, the coupler ensures a secure and no corrosion connection.