EXC Cable & Wire was established in 2006. With headquarters in Hong Kong, a Sales team in Sydney, and a factory in Shenzhen, China. Lan cables, fiber optic cables, network accessories, network rack cabinets, and other products related to network cabling systems are among the products we manufacture. OEM/ODM products can be produced according to your specifications as we are an experienced OEM/ODM producer. North America, the Middle East, Europe, and South East Asia are some of our major markets.Keystone couplers are a type of wall jack connector commonly used in homes and offices. They have a keystone shape and fit into a corresponding wall jack. The coupler allows you to connect two cables together, creating a longer cable length or connecting different cables to the same network device. When using a Cat5e UTP Keystone Coupler, make sure to choose a coupler that is compatible with your Cat5e UTP cable. The coupler should have the same number of wires (four pairs) and the same wire colors as your cable. Additionally, ensure that the coupler is properly installed and connected to the wall jack or other network device.