The RJ45 in-line coupler is designed to solve a great extended solution by series connection of 2 network cables to 1 longer cable. Easily connect one RJ45 to another with superior shield anti-interference, stable and safe in signal transfer. Ultra compact size, made of non-toxic fine raw materials and delicate workmanship, easy to be carried anywhere. Specification: Product name: RJ45 in-line coupler extender Material: ABS resin shell + copper core Color: Black Interface: RJ45 standard 8pin socket Item size: 4.2 * 2 * 2cm / 1.7 * 0.8 * 0.8in(L * W * H) Item weight: Approx. 25g / 0.9oz Package size: 6 * 4 * 4cm / 2.4 * 1.6 * 1.6in(L * W * H) Package weight: 27g / 1oz Package list: 1 * RJ45 Female to Female Network Jack In-Line Coupler Note: The package list without user manual.