Check the listing for details. Extron 70-1353-02 Cable Cubby F55 Retractor Mounting Bracket Kit One Retractor. Condition: New. Listed at 70.00 USD. The Extron 70-1353-02 Cable Cubby F55 Retractor Mounting Bracket Kit is a specialized accessory designed for the Extron F55 model. This bracket kit allows for convenient and secure mounting of a retractable cable management system, ensuring a tidy and organized setup for audio/video equipment. With the Extron brand known for quality products in the TV, video, and audio accessories category, this mounting bracket kit is a reliable solution for enhancing the functionality of your audio/video transmitter setup.