UCEC HDMI Female to Female Inline Keystone Coupler, Snap-in for Wallplate-Pack of 5 COMMERCIAL GRADE HDMI KEYSTONE JACK --- 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 ports. STURDY SNAP-IN CONSTRUCTION --- UCEC Female to Female HDMI Coupler provides a secure connection; Vertically oriented keystone insert is compatible with a wall plate or patch panel (sold separately) with standard keystone jack blank openings. QUICK CONNECT INSTALLATION --- Reusable keystone inserts 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. FULL FEATURE COMPATIBILITY --- Fit 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. ORDER WITH NO RISK --- If you are not 100% satisfied with this item, please don't hesitate to contact us and request a refund or replacement. UCEC offers 365-day money back and 24-hour friendly email support.