Aiten Data presents various sizes of 1U sliding trays – 450mm, 600mm, 800mm and 1000mm to suit the required background needs. Width is always standard 19″ On the flat surface they have slots that facilitate ventilation of the devices they hold and on the sides have removable sliding fixing anchors, which allow for comfortable handling of the contents. They are manufactured from 1.2mm cold rolled steel with black rust and powder coated finish.