Hi, well yes both should come with 4-pin PWM connectors. I have these fans myself and they are pretty neat!
Check if they have PWM connectors on the site you're buying them from. Corsair may have editions without PWM but i don't really know. I doubt they do, but juct check to be sure.
You can control your fans by changing voltage. You can chose between 5V, 7V and 12V. You can change this in the BIOS or use a Fan controller. You could possibly have one in your case (i do). I don't know if there is software that allows you to change the fans voltage but i bet there is.
Update: I looked it up! You can use a program called SpeedFan, but i would recommend hardware, not software to change the speed of your fans.