Need Help Finding Case Fan--PC connector 4 pin (molex?)

StarryEyedDreamer

Honorable
Dec 3, 2013
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Okay, I need some help as I'm not 100% computer savvy, please!

I need to buy a new case fan for my PC, as the other one finally gave out. I know that my PC has a black connector with red, yellow, and I believe black calbles (molex?) like this:
http://www.ixtreme.net/attachments/open-forum/668d1311049399-ck3-pro-ck3-probe-x360usbpro-tutorial-4pin_molex_power_conn.jpg

Now, there were three fans I found that I'm not sure which will work for this.
1. A Cooler Master 4 pin, but the shape looks different to me if you look at the pictures they show:
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

2. Apevia with 4pin/3pin adapter:
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

3. Cooler Master with 4pin/3pin adapter:
http://www.newegg.com/Product/Product.aspx?Item=N82E168...


Which would I use considering the connector I have? If I need one with the adapter, how does that work? Do I just plug the fan into one end of the provided adapter and then plug one of the adapter heads into the PC one?

If there are others you think would work better, please do tell. I'm only using the PC for everyday use, and occasionally playing The Sims 3 or Skyrim.

Thanks to anyone who can help! :)