Space-efficient Atlas Sound CF Series Horizontal Fan Trays provide direct cooling for heat generating equipment mounted in 19" cabinets and enclosure systems.Each modular fan tray requires only one rack panel space and will mount up to 3 fan module units of one to three fans each for a maximum of 9 fans per tray.Each module is offered with 120 CFM (cubic feet per minute) fans installed for rapid and quiet heat dissipation.Modular design provides maximum flexibility of fan placement to direct air flow to specific heat source areas.Quick connect plugs allow simple, expedient field servicing for adding to or changing fan arrangement.