Heavy duty Cat 5e RJ45 couplers extend the connection between two Ethernet patch cables. Gold plated contacts ensure a corrosion free connection. This 8P8C female to female Ethernet coupler is backwards compatible with Cat5 network. Cat 5e coupler is UL Listed meets Category 5e performance. Cat 5e 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 a high-impact, fire-retardant plastic housing with gold-plated RJ45 contacts.