CERRXIAN 90 Degree 2-Pack Keystone Insert Jack HDMI Female to Female Coupler Adapter Keystone Panels Wall Plate Connector Adapter(White) HDMI Female To HDMI 1.4 Female Extension Converter Adapter with Panel Mount Buckle Slot An HDMI coupler for joining two HDMI cables together. Gold plated contacts HDMI Style Keystone jack- Coupler type (female connectors on the front and back) Note that this keystone orients the HDMI connector vertically into the wall-plate For use with Keystone panels or wall plates.The HDMI coupler insertion structure from the female to the female provie a secure connection; the vertical guide wedge is compatible with the wallboard or patchboard at the standard wedge opening.