I need to (ever so slightly) extend the USB cable on my 20 Aluminum Apple Cinema Display for it to reach my Mac Pro, and I found this cable - http://www.amazon.com/NEEWER®-White...428378951&sr=8-9&keywords=White+USB+extension Is there any danger or potential for danger when using a "cheapo" cable? My main concern is that is it properly grounded? I'm guessing there's some kind of certification that if a product is sold in the US it must meet certain design and quality standards, so I imagine it's grounded? Is there any risk in damaging the motherboard or USB ports on the Mac Pro if there's something wrong with the cable, or by using cheaper cables like this? I imagine it is fine but I just thought I'd ask anyways; I'll invest in a higher quality cable if need be, but this one's all I need.