Arduino pro mini 5v programmer serial Uart FT232RL problem

Hi

As in picture under, when I connect it to my PC the USB docking goes down, I must disconnect from PC and remove FT232RL to restart my USB docking.

What can be wrong???

Is your Arduino Pro Mini really for 3.3V?
Yours seems to be the same as mine, which is for 5V,

Do you have a sparkfum pro mini or some clone, they are different.

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