I assume when you are talking about rgb fans, you mean fans with addressable leds. Those fans always has two connectors. One for the fan itself and one for the leds.
And yes, aquaero can control some of them. But you need another Hardware, like a Splitty4. Then you can even disable the RGB by setting the brightness to zero.

Yes, but for different fans you may have different hardware because there are different types of rgb lightning. But in general there are ways.
And keep in mind the amount of leds fans may have. For example, Corsair QL fans have 34 leds each. That means on one farbwerk port you can only control two fans, because the max amount per channel is 90 leds.

I have the same problems actually.

What fans are you running?! Do you have fans with more than 45 leds each? Because if not, you could run at least two fans per farbwerk port. Maybe more, if you have less leds on each fan.
For example, with corsair LL fans you can run 4 fans per farbwerk channel, so you only need 1 farbwerk and 3 splitty4 for 12 fans. But that belongs to you setup.

If you use fans with 16 leds you can even run all on one farbwerk, if the current draw is withing the limits of the splitty/farbwerk as well. Good luck!

If you already have experience with the corsair software options you will not be impressed by the aquasuite. This really is a downside i encountered too.
The software can't really handle the fans correctly, even if they say they can on the website. The software can control argb, thats true. But if you want to configure it correctly you really fast run in software limitations. You simply cant create enough led groups to set up the fans correctly. You have to do work-arounds.
And there are other things that much better in the iCUE Software. Like there is no way to change the brightness of all leds all together. You need to change it per channel. Pretty annoying so far.

But on the other hand, a big advantage of the aquaero/farbwerk/splitty is, that the lightning is stored on the hardware. Means, you don't need to run the software in background to keep the effects going. This is pretty nice imo.
And you can configure other nice things too.

Quoted from "eisbehr"

you will not be impressed by the aquasuite. This really is a downside i encountered too.

?? explain whar can icue better than the aquasuite, our feeback says the opposite

Quoted from "eisbehr"

The software can't really handle the fans correctly, even if they say they can on the website.

your OCTO fan controller has for this price the best value for money

Quoted from "eisbehr"

But if you want to configure it correctly you really fast run in software limitations

???

Quoted from "eisbehr"

You simply cant create enough led groups to set up the fans correctly. You have to do work-arounds.

???

Quoted from "eisbehr"

And there are other things that much better in the iCUE Software.

???

You have a FAN controller with the capabilities to control some LEDs. When you like to control mord leds you have to take the farbwerk 360.

you spend hundreds of euros on fans, then you also have to invest a few euros for the RGB control.
In the OCTO RGB is an addition.

If i write a bit of criticism, i get an instant reply. But my questions stay unanswered.

Anyway, its easier for me to write down my experience in german, so you can find my reply here:
Ein paar Verständnisfragen von einem Neuling

And why do you mean i spend to less money for my setup? I already ordered AC parts for about 270€ and the next order or about 260€ of AC equipment is just waiting for feedback. Feel free to give me some, so i can place an order right away!
Hat der Aquabus ein Limit und macht der Aufbau Sinn?

If there is any other option i'm willing to purchase this too. But please don't tell me my problems belong to a lack of money, when i put over 500€ in just my fan controls. I would be glad to get advices how i could improve this ...

Quoted from "sebastian"

your OCTO fan controller has for this price the best value for money

I really like the Octo. The fan controls are great, really loving it. My reply only belongs to the rgb control, nothing more.