Cat 6 RJ45 In-Line Coupler requires no tools to connect RJ45 Ethernet patch cables. This coupler is an ideal solution for extending existing Cat 5, 5e, 6 & 6a cables that cannot be accessed or relocated. It is very useful for quickly testing and troubleshooting equipment problems. Superior construction combines high-impact, fire-retardant plastic housing with gold-plated RJ45 contacts.