Tripp Lite's SmartRack SRFANROOF is ideal for increasing the ventilation in all rack enclosure server cabinets. The unit features (6) 120V high performance fans mounted in a roof panel, 6-ft. cord with NEMA 5-15P input plug, and includes toolless mounting hardware.COMPATIBLE SMARTRACK ENCLOSURES - SR25UB, SR25UBKD, SR25UBSP1, SR25UBTAA, SR42UB, SR42UBCL, SR42UBEXP, SR42UBG, SR42UBKD, SR42UBSP1, SR42UBTAA, SR48UB, SR48UBCL, SR48UBEXP, SR48UBSP1, SR42UBTAA, and other Tripp Lite SmartRack enclosures that specify the use of this accessory.