Holding device for a computer component

A holding device for supporting and suspending a computer component below a support surface, comprising:

• a holding seat;
• a rotating rod rotatably mounted on said holding seat about an axis;
• a flexible strap having a first end which is secured to said holding seat, a second end which is opposite to said first end and which is disposed on said rotating rod, and a bracing section which interconnects said first end and said second end for looping and bracing the computer component;
• and
• an adjusting unit disposed on said holding seat, and including a retaining ring, a coupling rotary disc and a biasing member disposed on said holding seat and arranged along the axis, said retaining ring being formed on said holding seat adjacent to an end of said rotating rod, and having a plurality of retaining teeth which are angularly disposed about the axis, said coupling rotary disc being in non-rotatable engagement with said rotating rod to be movable relative to said rotating rod along the axis and to rotate said rotating rod, and having a plurality of coupling teeth which are angularly disposed about the axis and which are meshable with said retaining teeth, said biasing member being sleeved around said rotating rod to bias said coupling rotary disc toward said retaining ring so as to bring said coupling teeth to mesh with said retaining teeth.