PC Peripherals USB 3.0 PCI card

Hi Folks
I need your advise to update my knowledge on USB 3.0 PCI cards.
I am afraid that I will be utilizing all the USB pots available in my PC very soon and I do not have very good experiences with USB hubs. Thus, I was considering procuring something like this.

Is this is good idea?
Do you have USB3 header on your motherboard?
 
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