Designed to provide extra air flow into and out of the box allowing the audio/video equipment to remain as cool as possible. Includes a lock and key. Designed to provide extra air flow into and out of the box allowing the audio/video equipment to remain as cool as possible. Panel is designed to work with the ECB2S, ECB2S-CR, and ECB2S-RLNK boxes and is powder coated white to match the enclosure. The panels are field paint-able to match the room decor. Includes a lock and key.