Computer case fan NoiseBlocker BlackSilentPro PLPS 120 mm, 1500 RPM, 100 m³/h, 4.5 V, black

NoiseBlocker BlackSilentPro PLPS 120 mm is a chassis fan designed to improve airflow inside desktop PCs and server enclosures. Measuring 120 × 120 × 25 mm and finished in black, this fan operates at up to 1500 RPM with an airflow rating of 100 m³/h and is optimized for low-noise operation at a nominal 4.5 V input. The model integrates a classic frame and rotor design with modern drive and bearing technologies to provide steady cooling performance and long-term reliability.

Advantages

The fan uses a glass fibre‑reinforced chassis and an anti-dust polycarbonate rotor for mechanical stability and reduced contamination over time. Its advanced NB‑EKA Plus II drive and NB‑NanoSLI bearings deliver low impulse noise and very quiet continuous operation, while reverse-pole and overload protection with restart function increase operational safety. The product includes a silicone seal and vibration‑reducing installation material for tool-free, vibration-free mounting, and an extendable cable management system for flexible wiring.

Suitable for (tasks / use cases)

• Chassis ventilation for desktop computers and small servers
• Improving internal airflow around motherboards, GPUs and storage bays
• Replacement or upgrade of existing 120 mm case fans to lower noise
• Quiet system builds where reduced acoustic signature is required

Key specifications

• Fan diameter: 120 mm (120 × 120 × 25 mm)
• Maximum speed: 1500 RPM
• Airflow: 100 m³/h
• Rated voltage: 4.5 V
• Color: black with matte and mirror finish accents
• Frame material: glass fibre‑reinforced chassis
• Rotor material: anti-dust polycarbonate
• Bearing type: low-noise, long-life NB‑NanoSLI bearings
• Drive: NB‑EKA Plus II wide-range drive with low impulse noise
• Mounting: silicone seal and vibration-damping installation system for tool-free fitting

How to use

Install the NoiseBlocker BlackSilentPro PLPS in a standard 120 mm fan mounting location in your chassis, ensuring correct airflow orientation for intake or exhaust according to your cooling plan. Route the fan cable through the extendable cable management system and connect to a compatible fan header or controller that supports the fan's 4.5 V operating range. Secure the fan using the supplied silicone seal and anti-vibration fittings to reduce transmission of vibration to the case. Verify connector polarity before powering on; the fan includes reverse-pole protection to prevent damage from incorrect connection.

Recommendations

For best results, position the BlackSilentPro PLPS to complement existing case fans: pair with an intake fan at the front or lower position and an exhaust fan at the rear or top to establish a consistent airflow path. Periodically inspect the rotor and polycarbonate surfaces for dust accumulation and clean gently to maintain airflow and low-noise performance. Use appropriate fan headers or dedicated controllers to avoid supplying voltages outside the specified range.