Keystone Snap-in Modules from Cables To Go provide a full range of solutions for voice, home networking, home office, audio, video and more. With the wide selection of snap-in modules, keystone wallplates and patch panels can be custom configured giving you greater control and flexibility. - Insert Type: RCA. - Color-Code: Red. - Designed For: Snaps into patch panels and compatible wallplates and surface boxes. - Application: Coupler for RCA audio/video applications.