Package Includes: 3 individual fans in a 3U-rack space ( 5.25 ) housing, 3Ft power cord, 4 mounting screws ^^ Low noise, high
volume air movement: Each fan operates with a very low noise at 41dB, airflow capable of moving up to 92 CFM for a combined flow of up to 276 CFM (Cubic Feet Per Minute) ^^
Premium fans inside: Solid metal frame, Axial fans with a Magnesium alloy impeller, which effectively decreases the temperature of the bearing to prolong the lifespan of the fan. IP55 water and dust protection and RoHS compliant. ^^ Reversible fans for air intake or exhaust ^^ All three fans are tied into 1 AC plug