TNP Blank Keystone Jack Coupler Insert Snap In Female Module Connector Socket Adapter Port For Wall Plate Outlet Panel (White) Blank keystone jack insert module fits a standard opening in a wall plate for keystone jacks Covers unused ports to keep out dust and debris; Cover unused holes on the wall plate faceplate outlet planel and remove when ready for expansion Provides a secure connection to prevent access or tampering into your wall plates Reusable keystone jack design for easily disconnect and relocate when upgrading or redecorating Quick snaps in installation and easily fits standard keystone wall plate, patch panel or surface box; Compatible with nearly all keystone style wall plates