http://www.nikonchat.com/coolpix-cables/
Trying to upload photos from my Nikon Coolpix S210?
But every time I connect the cable, a message appears that there is a "Power Surge On Hub Port." When I click on Transfer of images, adjusting images Copy is not available. I downloaded the images from the camera before! I've tried installing the cd launch
You need to connect the USB cable directly to your computer, try another USB port. It seems that you are trying to use is not capable of supply enough current.
Nikon COOLPIX L21 Unboxing
Nikon News