You can use a shieldless Cat6 female-to-female keystone jack to connect two Cat5e/Cat6 Ethernet network cables. The iwillink RJ45 Cat6 keystone coupler is a standardized RJ45 keystone jack, so it has a specific size and shape that is compatible with keystone wall plates or patch panels. Such devices are used for patching from an Ethernet hub to a distribution panel, or for connecting a workstation to a wall outlet. Cat6 keystone inline couplers make DIY projects such as voice, home networks, home offices, and video easy. The plug contact part uses a phosphor bronze continuous gold plating process, and a fixing clip is provided to ensure the stability of data transmission, while also providing corrosion resistance, plug resistance, and effectively extending the life of the module. 16-28 iwillink RJ45 Cat6 keystone coupler for LAN cables.