AllSmartLife 2-Pack HDMI Keystone Jack Gold-Plated Insert Inline Coupler - White COMMERCIAL GRADE HDMI Keystone Jack insert provides a professional looking installation for home theater A/V configurations with a wall mounted HDTV; Connect a Blu-ray player, streaming video player, HDTV, projector, computer or other device with the common HDMI port FULL FEATURE COMPATIBILITY for all 3D, 4K, Audio Return Channel, Consumer Electronics Control, and Ethernet features of your HDMI cables and devices without any signal loss; Gold-plated HDMI pass-through connectors improve the signal transmission and resist corrosion to provide durability STURDY SNAP-IN CONSTRUCTION of female to female HDMI coupler provides a secure connection; Vertically oriented keystone is compatible with a wall plate or patch panel (sold separately) with standard keystone jack blank openings COST-EFFECTIVE 2-PACK provides a pair of HDMI inserts for connecting a video source and an HDTV with the cables concealed behind the wall for a customized installation QUICK CONNECT INSTALLATION with reusable keystone jack inserts that can be easily disconnected and relocated when upgrading or redecorating; Connect an HDMI 90 or 270 degree angle adapter to route cables in tight spaces