CoolXtreme high-density backplane fan wall air conditioner adopts integrated (all-in-one) and modular design, which integrates fan module, heat exchange coil, electric control box, and water pipe box. According to the specific customer needs, backplane fan wall can be combined with other equipment. It has a compact structure, flexible design, and aesthetic installation, and features prefabrication, high heat density, high energy efficiency, and easy maintenance.