Two 120mm fans are included, without RGB. But be careful, they are 3-pin fans. I have replaced them with three PWM fans.
With this case, you get what you pay for: not very much
Hmm, it's currently a disaster with the availability of many hardware products. I assume that Corona is still hindering production and supply chains. At the moment you can't get any power supplies over 1'000 Watt, Ryzen 5 3600X are sold out as well as various other parts in the area of PC hardware.
I build for other PCs as a hobby and it's really annoying with the availability at the moment - I'm constantly running after the components.
The case does not have an integrated fan controller (fan hub) according to the available product data. The supplied fans (1x front, 1x rear) can be connected directly to the mainboard. For RGB control on models with RGB fans, a separate controller is required, which may be included in the scope of delivery depending on the model.
Note: The in-house data provided does not mention fan lift. Official Corsair resources confirm that the 4000D series supports up to 6x 120mm fans, but without an integrated hub. If extended control is required, an external hub or a motherboard with sufficient connections is recommended.
The Corsair 4000D Airflow comes with two pre-installed 120mm fans, known as AirGuide fans. These fans are 3-pin DC fans with a maximum speed of around 1250 RPM.
You cannot purchase these specific fans directly as they are designed specifically for the 4000D series. However, you can purchase other 120mm fans with similar specifications from Corsair or other manufacturers to use in your case.
No, a maximum of 360mm will fit in the front, but only with difficulty. At the top of the case, a maximum of a 280mm radiator will fit. The RAM must be low profile (no Corsair dominator, but lpx is okay). I personally use a 240mm, then you also have enough space to lay the cables too nicely 🙈.
Hello, 360mm AIO only fits in the front. AIO in the front would increase the temperatures of the graphics card. In most cases this is not ideal, as CPU performance is hardly the bottleneck in most builds.
I would recommend a 240 mm AIO as an exhaust on top or an air cooler instead. I would advise against a 280 mm AIO because of the ram and motherboard clearance issues.
REGARDS
As stated on the manufacturer's website, three 120mm fans or two 140mm fans each fit in the front and top. However, only one 120mm fan fits in the rear.
Unfortunately not, according to our information, the front panel connectors are fixed to the case and cannot be replaced by separate cables, including the USB 3.1 Type-C connection.
No, the fans supplied do not have RGB and the hub of the ML fans is, as far as I know, only for the RGB lighting, not for the fan control. You would have to connect them directly to the mainboard or control them via a Commander Pro.