Ventola Noiseblocker BlackSilentPro PL2

The Noiseblocker BlackSilentPro PL2 is a 120 mm case fan designed to provide effective airflow with minimal operational noise. With a maximum speed of 1400 RPM and an airflow rating of 96 m³/h, this fan balances cooling performance and acoustic restraint, producing just 20 dB at full speed. The compact 120 x 120 x 25 mm frame in matte black and mirror-finish rotor fits standard mounting points and includes features intended to reduce vibration and simplify cable routing, making it suitable for quiet desktop and workstation builds.

Advantages

The BlackSilentPro PL2 uses a glass fibre-reinforced chassis and an anti-dust polycarbonate rotor to ensure structural stability and long-term reliability. Its NB-EKA Plus II wide-range drive minimizes impulse noise and supports extremely low start voltage for reliable operation at lower voltages. The NB-NanoSLI bearings provide long service life and very low running noise. The fan also includes a silicone NB-Silentframe and installation material for tool-free, vibration-free mounting and an extendable cable management system with plug-in cables for flexible cable routing.

Suitable for

• Quiet desktop PC and home office systems
• Workstations where low noise is important
• Case ventilation and general chassis cooling
• Systems that require vibration-free, tool-less fan installation

Key specifications

• Fan diameter: 120 mm
• Dimensions: 120 x 120 x 25 mm
• Maximum rotational speed: 1400 RPM
• Airflow: 96 m³/h
• Noise level (max): 20 dB
• Operating voltage: 4.5 V
• Colour: Black, matte frame with mirror-finish rotor
• Chassis material: Glass fibre-reinforced
• Bearing type: NB-NanoSLI low-noise long-life bearings
• Drive: NB-EKA Plus II wide-range drive with low impulse noise
• Mounting: NB-Silentframe silicone seal for vibration-free installation
• Cabling: Extendable cable management with plug-in cables

How to use

Install the fan into a compatible 120 mm mounting location in your PC case using the supplied NB-Silentframe silicone seal and installation materials for a vibration-free, tool-less fit. Connect the plug-in cable to the appropriate fan header on the motherboard or to a fan controller, using the extendable cable lengths to route wiring neatly. Ensure the fan orientation matches your desired airflow direction for intake or exhaust. Operate the fan at or below the specified voltage and observe standard safety precautions when working inside the computer.

Recommendations

For lowest noise, use the fan at reduced voltage or with a motherboard fan curve to limit maximum RPM. Place the fan in intake or exhaust positions consistent with overall case airflow, and avoid obstructing the rotor with cables or nearby components. Periodic cleaning of the rotor and anti-dust surfaces will help maintain optimal airflow and low noise over the fan's service life.