A fan assembly includes a housing; a plurality of fan units mounted in the housing; and a flex printed circuit board (PCB) having a first portion, the first portion of the flex PCB electrically connected to each of the plurality of fan units, the flex PCB having a second portion, the second portion of the flex PCB including a printed circuit assembly (PCA), the PCA having mounted thereon a connector to connect to a PCA disposed within a chassis. Alternatively, an apparatus includes a chassis having a PCA disposed inside the chassis; and a fan assembly, the fan assembly including a housing; a plurality of fan units mounted in the housing; and a flex PCB having a first portion, the first portion of the flex PCB being arranged parallel to a surface of the housing and being electrically connected to each of the plurality of fan units, the flex PCB having a second portion, the second portion of the flex PCB including a PCA, the PCA having mounted thereon a connector connected to the PCA disposed within the chassis.