Storage device

A storage device comprising:

• a printed circuit board comprising an upper surface on which a controller and at least one memory device are provided, and an interface configured to be coupled to a host;
• and
• a case having an internal space accommodating the printed circuit board, the case comprising a first surface and a second surface that are parallel to the upper surface of the printed circuit board,
• wherein at least one of the first surface and the second surface comprises a plurality of turbulators.

A storage device, comprising:

• a case having an internal space in which a controller and at least one memory device are accommodated;
• and
• an interface externally exposed from the case and configured to be coupled to a host,
• wherein the case further comprises:
• a plurality of surfaces comprising a first surface and a second surface facing each other;
• a plurality of first structures protruding from the first surface by a first height;
• and
• a plurality of second structures protruding from the second surface by a second height.