RAIJINTEK EOS 12 RBW ADD 120 mm Hydraulic Bearing PWM Fan, 800–1800 RPM, 2 pcs, Black/White

RAIJINTEK EOS 12 RBW ADD is a dual-pack of 120 mm PWM case fans engineered for PC cooling and improved chassis/CPU airflow. Each fan operates between 800 and 1800 RPM and uses a hydraulic bearing to reduce operational noise and extend service life. The nine-blade design and integrated LEDs in the fan blades provide increased airflow with lower turbulence while delivering up to 2.3 mmH2O static pressure. Anti-vibration rubber pads on all corners help minimize transmitted vibration and the 120 × 25 mm profile fits standard mounting locations in most cases.

Advantages

The EOS 12 RBW ADD kit combines a high-efficiency nine-blade rotor with hydraulic bearings to balance airflow, static pressure and acoustic performance. PWM control enables automatic fan speed adjustment according to system temperature, while anti-vibration pads reduce chassis noise. Integrated LEDs in the blades provide customizable lighting effects when used with compatible controllers, and the dual-fan pack simplifies installation for multi-fan configurations.

Suitable for

• Case cooling and intake/exhaust airflow optimization
• Supplementary cooling for CPU air coolers and small liquid-cooler radiators
• Builds requiring low-noise operation and moderate static pressure
• Systems where synchronized RGB/lighting effects are desired (with compatible controller)

Key specifications

• Fan diameter: 120 mm
• Thickness: 25 mm
• Speed range: 800–1800 RPM (PWM)
• Maximum static pressure: up to 2.3 mmH2O
• Bearing type: hydraulic bearing (low-noise design)
• Noise-reduction features: anti-vibration rubber pads on all corners
• Lighting: LEDs integrated into fan blades (addressable/compatible with controller sets)
• Available colours: black and white
• Pack quantity: 2 fans

How to use

Install the fans into standard 120 mm mounting locations in your PC chassis or cooler radiator using the supplied screws. Connect the PWM power connector to a motherboard fan header that supports PWM control to allow automatic speed regulation. If you want to use the addressable lighting functions, connect the LED cable to a compatible controller or motherboard header that supports the fan's LED protocol; consult your motherboard or controller manual for pinout and software control instructions. Ensure airflow direction matches your desired intake or exhaust configuration and that cables are routed to avoid obstructing fan blades.

Usage recommendations

For balanced cooling and reduced noise, configure the fans under PWM control so speed scales with system temperature. Use anti-vibration mounts or rubber grommets if your case lacks built-in dampening. For synchronized lighting effects across multiple EOS 12 RBW ADD fans, use the RJK ARGB-PWM CONTROL SET or a compatible addressable RGB controller and follow the controller's setup to apply fading, breathing, blinking or single-color modes. Periodically clean the fan blades and housing to maintain performance and airflow.