Abstract: A mounting apparatus used in a casing to mount a fan to a bracket and protect the electrical cables supplying the fan includes a pillar, a clipping member, and a connecting member. The pillar includes a first end and an opposite second end. The clipping member secures a cable of the fan and is fixed to the first end of the pillar. The connecting member mounting the fan is fixed to the second end of the pillar. The pillar defines a clipping slot for mounting to the bracket, the clipping slot is located between the first end and the second end.

Abstract: An air guiding duct and casing providing easy access for fan maintenance and electronic devices using the air guiding duct are disclosed. The air guiding duct includes a first guiding plate and a second guiding plate. The first guiding plate includes a first pivoting portion and first extension panels. The second guiding plate includes a second pivoting portion and second extension panels. The first guiding plate is rotatably connected to the second guiding plate, and can be in a first position to align with the second guiding plate and join each first extension panel with a second extension panel, to define air guiding channels for heat dissipation, and a second position, where the first guiding plate is tilted with a predetermined angle relative to the second guiding plate.