The 4pin fan wont work with the 3pin cable.
* well you could probably butcher it so that it did fit, but meh.
Just buy a cheap 3pin fan - https://www.overclockers.co.uk/akasa-ak-191-sm-smoke-ultra-quiet-120mm-fan-3-pin-fg-037-ak.html
The reason for the fan cable extension was that some fan cables arent long enough to reach the motherboard system fan header.
* well you could probably butcher it so that it did fit, but meh.
Just buy a cheap 3pin fan - https://www.overclockers.co.uk/akasa-ak-191-sm-smoke-ultra-quiet-120mm-fan-3-pin-fg-037-ak.html
The reason for the fan cable extension was that some fan cables arent long enough to reach the motherboard system fan header.
Doesn't seem to say how long the fan cable is.