The Extron AAP 302 is a 2U metal mounting frame that provides system integration of the many Extron AAP - Architectural Adapter Plate options to create custom pass-through connections and/or control module solutions for any rack. The AAP 302 has four AAP openings that can be populated with up to 16 single-space AAPs. The Extron AAP 302 includes two single-space, one double-space, and one quad-space blank AAP plates to fill unused openings. The AAP 302 is available in black. Dimensions: 3.46" x 19.00" x 0.50" (8.78 x 48.26 x 1.27 cm)