Tripp Lite SRFAN1U 1U SmartRack 1U Fan Tray, 3 120V High-Performance Fans, 210 CFM, 5-15P Plug

3 powerful 4 in. 120V fans push air toward top of the rack Circulates air at 210 cubic feet per minute (CFM) Built using heavy-duty cold-rolled steel designed to last a long time