Hello, Here's the scope of delivery: Corsair NAUTILUS RS ARGB 360mm AIO Liquid CPU Cooler (White) Intel & AMD Mounting Kit Extension Cables Fan & Radiator Mounting Screws

The NAUTILUS 360, 360mm Radiator, Liquid CPU Cooler from Corsair should be sufficient to cool a Ryzen 7 9800X3D as it is compatible with the AM5 socket and provides efficient cooling. The Ryzen 7 9800X3D has a relatively low TDP of 120W, which makes cooling easier.

The product does not include an additional controller, as the twenty RS120 ARGBs can be controlled directly via the motherboard, thanks to precise PWM control.

The fans, as they are daisy chain on this cooler, they'll be controlled by a single header of the motherboard. You can set up a custom curve for the fans from your computer's BIOS or a software like Fan Control.

The product "NAUTILUS 360 ARGB White" is not compatible with iCUE LINK, as it does not support iCUE LINK technology. However, it can be controlled via the motherboard's ARGB light management software. For more advanced control via iCUE, you could consider using a controller such as the COMMANDER CORE XT, but this would require an additional adapter.

The Corsair CPU liquid cooler is compatible with the NZXT H6 Air Flow RGB enclosure, as this enclosure supports heat sinks up to 360 mm in length, which corresponds to the size of the heat sink on the Corsair cooler.

The NAUTILUS RS series coolers have a specially designed contact surface that has been pre-treated with thermal paste at the factory to maximise heat transfer. Therefore, no additional thermal paste is required.

Yes, the product contains three fans. These are specially designed for high airflow and high static pressure to blow efficiently through the radiator.