Computer case fan NoiseBlocker BlackSilentFan XLP 120 mm, 2000 RPM, 128 m³/h, 31 dB, 4.5 V, black

The NoiseBlocker BlackSilentFan XLP 120 mm is a chassis fan designed to improve airflow inside standard PC cases. It measures 120 × 120 × 25 mm, runs up to 2000 RPM and provides an airflow of 128 m³/h while generating up to 31 dB of noise at maximum speed. The fan is powered at a rated voltage of 4.5 V, has a black finish and is intended for general case ventilation rather than direct CPU-socket mounting.

Advantages

This fan combines cost-effective construction with reliable performance: a glass fibre-reinforced frame offers mechanical stability and durability, and the anti-dust polycarbonate rotor helps maintain consistent airflow over time. The model includes an extra-long connection cable and four mounting screws for straightforward installation. It features a low start voltage and a wide-range drive that reduces impulse noise, plus reverse-pole and overload protection with a restart function for enhanced safety and fail-safe operation. Bearings are engineered for low operational noise.

Suitable for

• General chassis ventilation in desktop PC cases
• Improving airflow around graphics cards, storage drives and motherboard components
• Replacing worn or noisy 120 mm case fans to reduce system noise

Key specifications

• Fan size: 120 mm (120 × 120 × 25 mm)
• Maximum speed: 2000 RPM
• Airflow: 128 m³/h
• Maximum noise level: 31 dB at full speed
• Rated voltage: 4.5 V
• Color: Black
• Frame: glass fibre-reinforced chassis
• Rotor material: anti-dust polycarbonate

How to use

Mount the fan in a standard 120 mm case opening using the supplied screws and connect the cable to the appropriate fan header or power adapter on the motherboard or power supply. Ensure correct airflow direction according to your case cooling plan (intake or exhaust) and avoid contact between the rotor and cables or nearby components. If using a fan controller or motherboard PWM/voltage control, configure the control settings to match the fan's rated voltage and desired speed range.

Recommendations

For balanced cooling and acoustics, position the fan to complement existing case fans—use it as an intake to support front-mounted radiators or as an exhaust to remove warm air from the rear or top of the case. Periodically clean the rotor and frame to maintain airflow and inspect the connection cable and screws for secure attachment. Avoid using the fan in environments with excessive dust or direct exposure to liquids.