Coupler Block The coupler block joins two 1/2-wide space 1 RU high products. Both products must be equipped with rack ears. The coupler includes 8 rack-mount screws (10-32 x 3/4). No other hardware is required. The coupler is precision machined from solid aluminum and has a black anodized finish. It provides a rigid connection between two 1/2-wide products to fill a single 1RU space in a standard 19" equipment rack. Premium Blank Plate Order the coupler with an optional Premium Blank Plate if only one unit will be mounted in the rack. Machined from 1/4 inch thick aluminum. Includes an engraved Benchmark Logo. Available in a black or silver-colored anodized finish. Notes The Rack Mount Coupler may only be used with 1/2-wide 1-RU products having rack ears. Products must be equipped with rack ears to use this coupler. No tray is required when joining two 1/2-wide rack mount products with the coupler. Compatible Products This coupler is compatible with the following 1/2-wide products: DAC1 with rack ears DAC1 USB with rack ears MPA1 with rack ears ADC1 with rack ears ADC1 USB with rack ears DAC2 DX with rack ears DAC3 DX with rack ears DAC3 B with rack ears Made in the USA