Usage: It is used for extending ethernet connection by connecting 2 short network cables together.. RJ45 Coupler With nickel plated contacts and easy snap-in retaining clip, the coupler ensure a secure and corrosion free connection.. RJ45 inline jack coupler meets Category 6 performance, compatible with TIA/EIA 568-C. 2 standard and RoHS certification.. 1000 Mbps High Speeds, Plug and Play, Compatible: Cat8/ Cat7, Cat6 Cat5e, Cat5 network.. Ethernet Coupler connection is firm, not easy to fall off, suitable for all kinds of places, note: not waterproof.