best 120mm case fan?

[dinosaurus]

Looking for a good 120mm fan, that would be reasonably quiet with a good airflow. I also need 2 adapters to make 1 fan slot into 2, I don't know where to start with that one, thanks.

 

[norcalsc]

corsair ml120 https://www.corsair.com/us/en/LED-Color/Fan-Size/Package-Quantity/ml-config/p/CO-9050039-WW

pc case fan splitter https://www.amazon.com/Rosewill-Splitter-Duplicator-Converter-Adapter/dp/B01N0XQ7XC

this is all you need