Mighty Mo 20 post adjustable racks are allows all 4 mounting rails to be adjusted even after the rack has been fastened to the floor. Availble in depths of 30", 36" and 42" depths in both square hole cage nut styles or threaded rails. Front and rear waterfalls allow for equipment patching and server patching. All styles of Mighty 20 vertical managers can be mounted front or rear and airflow baffles can be mounted to manage the airflow of side breathing equipment.