Mac Pro 1,1 fan upgrade

[fritzchentastig]

Hello,
I am using a Mac Pro 1,1 with x5355 cpus.
The noice of the fans ist disturbingly loud, so I want to upgrade the fans with be quiet silent wings.
i want to know wich type of 4pin connector the orginal fans use.
Sorry for the Grammar
I hope you can help me.

 

[mad86]

There is no compatible fan from the market, you can buy used ones with the same make and model.