The original USB humping dog was out about 6 months ago and humped while plugged into a USB port. Now, there is a mod thats more of what you’d expect. He’ll hump only when copying data or accessing data. Unfortunately it’s just a mod so not for sale, but follow the tutorial and you too could have your own USB humping dog on command copy.

Video after the jump
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Source: Gizmodo, USB Humping dog mod tutorial