The HDMI keystone coupler allows you to easily add an HDMI jack to any standard keystone wall plate, surface mount box or patch panel. The snap-in HDMI jack is simple to install and provides you with a robust F/F in-line HDMI coupler, white Keystone Jack - HDMI Female to Female Coupler - White The HDMI keystone coupler allows you to easily add an HDMI jack to any standard keystone wall plate, surface mount box or patch panel. The snap-in HDMI jack is simple to install and provides you with a robust F/F in-line HDMI coupler. Here's an in-depth look at the specifications of this HDMI keystone jack: Type: HDMI 19P F/F Keystone Coupler RoHS Compliant Fits standard keystone wall plate, patch panel or surface box Gold plated Color: White