Usage: Huakan RJ45 Coupler extender is ideal for extending ethernet connection by connecting 2 short network cables together. Fast speed to 10 Gigabit: The RJ45 connector can speed up to 10 gigabit for connecting ethernet cable. Safety: With nickel plated contacts and easy snap-in retaining clip, the coupler ensure a secure and corrosion free connection High performance: RJ45 inline jack coupler comply with the TIA/EIA 568-C.2 standard. It is RoHS compliant. Compatibility: This 8P8C female to female Ethernet coupler jack is compatible with Cat8, Cat7, Cat6 Cat5e, Cat5 network.