Racky Rax Fan Trays are designed to keep networking equipment cooler by increasing airflow through the cabinet. Specially designed to fit on the roof of Racky Rax Floor cabinets, the Fan trays come complete with either two or four high quality, low noise fans; and are powered via a standard UK 240V plug. The 2 way RR-FT-2 is for use in 600 x 600mm or 800 x 600mm Floor Standing cabinets; the 4 way RR-FT-4 is for 600 x 800mm or 800 x 800mm server cabinets and the Large 4 way RR-FT-14 is for 800 x 1000mm server cabinet.