What happens if too much or too little voltage is applied to case fans?

XdbodzX

Honorable
Nov 7, 2013
139
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10,690
[url=http://www.amazon.co.uk/Zalma...qid=1386623460&sr=8-1&keywords=molex+to+3+pin [/url]

I would like to buy the above, however I am not sure if it will work with my fans.
I have:
1x Twocool 120mm
1x Twocool 140mm
2x Corsair SP120 120mm fans.


My problem is, that the splitter that I would like to buy has a 12V line, as well as a 5V line. 2x 12V wires and 2x 5V wires.

I cant seem to find any info online to do with the voltage of my fans and what they need.

What would happen if too much or too little voltage is applied to case fans?
Will I be fine?


Thanks!
Dan.