Dark Flash Nebula DN240 240mm ARGB Liquid CPU Cooler, White

Radiator class

Rated pump speed

Fan size

Lighting

A 240 mm Radiator Layout

The radiator body measures 275 × 120 × 27 mm. Use those full measurements, together with fan thickness and tubing clearance, when checking a case mount. This is a 240 mm-class cooling arrangement, so the case needs a suitable mounting position rather than simply spare space beside the motherboard.

A Pump Design That Stays Visible

Nebula DN uses a non-directional symbol on its pump assembly and a three-stage motor rated at 2400 ±10% RPM. The block measures 86 × 72 × 59 mm. Check the space around the processor socket and route the tubing without pulling sideways on the mounted block.

120 mm Fans for the Radiator

Each specified fan measures 120 × 120 × 25 mm and operates across 800–1800 ±10% RPM. The manufacturer lists 61.7 CFM airflow and 1.26 mm H₂O static pressure for the fan design. These fan specifications describe the cooling hardware; actual CPU temperatures also depend on processor load, mounting and case airflow.

Intel and AMD Mounting Support

The model family lists support for Intel LGA 1200, 115x and 1700, plus AMD AM4 and AM5 among its supported sockets. Use the correct mounting hardware for the actual motherboard socket. Older packages may require the appropriate later-socket mounting kit, so check the supplied bracket set before assembly.

Lighting as Part of the Build

ARGB lighting adds a visible accent to the cooler’s design. Match the lighting connection and control method to the supplied cooler instructions and the motherboard or controller being used. Fan motor power, pump power and lighting are separate functions and must be connected to their appropriate interfaces.

Model family

Nebula DN 240

Cooling format

All-in-one liquid CPU cooler

Radiator class

240 mm

What radiator space is required?

240 mm-class mounting support plus clearance for the full 275 × 120 × 27 mm radiator and fans.

Can fan specifications guarantee a particular CPU temperature?

No. CPU load, assembly and case airflow affect temperatures.

Does an AM5 or LGA 1700 listing guarantee brackets in every old package?

Check the supplied mounting kit for the actual socket before assembly.

Is this an air-tower cooler?

No. It is an all-in-one liquid cooler.

Does the lighting use the same connection as pump power?

Treat lighting, pump and fan power as their respective functions and follow the supplied connection instructions.