Description Product Reviews Keystone blank insert fits 310 series wall plates 310-420 Blank inserts allow you to install wall plates and surface plates with extra spaces for future expansion without leaving behind an empty hole. Features Available in White, Ivory, Almond and Black Fiber connections for fiber to the desk installations Coaxial, Fiber, Audio, and Video keystone jacks for wall plates Run Audio and video through the same plate as your phone Snap in keystone jack is fast and easy to install 0 Reviews Hide Reviews Product Reviews