Tooless Connection, Just plug one cable into the front and one into the back of each port. Fits standard outlet boxes and low voltage mounting brackets(not included). All keystone jack couplers are removable, easy for future replacing. | HDMI Keystone Port supports all HDMI 2.0 functions, 4K, HDR,Backwards compatible with HDMI version. Perfect for home theater systems, video game systems, Blu-ray player, TV boxes and more. | CAT6 Ethernet Keystone is in compliance with the TIA/EIA 568-C.2 standard. Suitable for cables with RJ45 connectors such as Cat7, Cat6 Cat5e, Cat5 Ethernet cable. | Coax Wall Jack has a standard F connector used by cable companies to connect a modem, router or CATV box for video and internet service. Coax wall plate provides pass-thru of video and data from an RG6 coaxial cable. | TOS Keystone Jack connects the Toslink digital cable to the S/PDIF port of the HDTV, home theater system or other device with a fiber optic audio port.