The Rack Air Distribution Unit is a 2U fan unit that works with an existing precision air conditioning system to deliver cool air to the equipment contained in a rack enclosure. The Rack Air Distribution Unit connects into the raised floor and pulls supply air directly into the enclosure. This prevents the conditioned air from mixing with warmer room air before reaching the equipment. The Rack Air Distribution Unit minimizes temperature differences between the top and bottom of the enclosure. It also prevents hot exhaust air from recirculating to the inlet of the enclosure. The product is recommended for rack enclosures with loads greater than 1.5kW and can provide airflow for loads up to 3.5kW. It is also ideal for enclosures in raised floor environments where underfloor air distribution is inadequate.