Thermaltake External USB Fan

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This is the best general purpose, USB powered, adjustable speed, muffin fan on a stand. It is great for random cooling of equipment, or blowing away solder fumes. I bought it to cool an external NAS drive I have on my home network. The adjustability lets me turn down the speed so that it’s almost inaudible. USB power is becoming ubiquitous around computer equipment, so it is conveniently powered.

-- Bruce Bowen  

Thermaltake MobileFan II External USB Cooling Fan
$13

Available from Amazon

Manufactured by Thermaltake