The object of the invention is to provide a disk array system and electronic apparatus capable of both excellent cooling of heat generating members and reduction of noise from the apparatus. A disk array system accommodates a plurality of disk drives 2 and has a controller 6 for controlling the disk drives 2. A refrigeration cycle system is formed with a compressor 10, a radiator 12, an expansion valve 9 and a cold plate 7. The controller 6 is cooled by the refrigeration cycle system. Two-phase refrigerant coming out from the expansion valve 9 collides with a heat receiving surface of the cold plate 7.