USB 2.0 VGA adapter, looking for drivers

I just got a new pc and I did not notice that my vid card only has one port. I want to be able to plug both my vid cards. So I brought out my old vga adapter but I can,t find the drivers and just plugging in my Win 8 machine does nothing.

 

Would somebody know where I can get the drivers for it? or Any other suggestions would be welcome.

 

Thanks