A solid state drive apparatus includes a housing having a first accommodation space and a second accommodation space; a substrate mounted in the first accommodation space, wherein at least one non-volatile memory chip is mounted on the substrate; and a heat dissipation member mounted in the second accommodation space and including an isolation barrier that defines a boundary between the second accommodation space and the first accommodation space and a plurality of fin portions that extend from the isolation barrier away from the first accommodation space, wherein a plurality of through air holes are provided in a side of the housing adjacent the second accommodation space.