About two months ago, I purchased a Targus laptop cooling fan for my Dell Inspiron 6000 computer. I had used the Targus laptop cooling fan a fair amount and it seemed to do a fine job keeping my laptop cool. About halfway through my second month of ownership, the Targus laptop cooling fan started cutting in and out. Luckily, I’m very technically inclined so I was able to diagnose the problem down to the power switch on the USB power cable.