The fans can be purchase on **** for about $1.20 each (UN3F 2510S 5V cooler Brushless).
I used a (USB to RS232 TTL) $.99 on **** to connect the fans to the 3.3V output instead of the 5.V just to save a little more power for the QX. It is extremely effective and quite. It's not that much heavier and deffinatly still compact. HDMI input in TV will not be damaged by the extra weight. I have it connected on the back of my TV with the micro USB for power leading to the power adapter. I connect to it with bluetooth mouse and keyboard.
I did remove the aluminum heat sync on the top of the QX.
I purchased the smallest USB hub I could find at a reasonable price to connect a 2.4GHz keyboard/mouse combo and fans.
In all with out the HUB I spent less than $4.
Here are the pics and video. Enjoy.
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