568B. Cat.5e Inline Couplers. A series of Cat5e RJ45 couplers, Perfect for networking applications which require a reliable and durable connection. All models are highly reliable and excellent quality. Features ; Benefits. Category 5e RJ45 coupler 8P8C socket to 8P8C socket 50 gold plated contacts Wired straight contact 1 to contact 1, etc. Meets C5e EIA/TIA 568B Standard