Fan Noiseblocker BlackSilentPro PM-1

The Noiseblocker BlackSilentPro PM-1 is a compact 40 mm computer case fan engineered for use where space is limited and quiet cooling is required. Designed by NoiseBlocker, this fan operates at 12 V and provides a maximum rotational speed of 2800 RPM with an airflow rating of 7.1 m³/h. Its 40 mm diameter and 20 mm thickness make it compatible with small form factor cases, add-on cooling for chipset or VRM areas, and other narrow mounting locations in desktop computers and embedded systems.

Advantages

The BlackSilentPro PM-1 combines a small physical footprint with a relatively high rotational speed, delivering targeted airflow in confined spaces while maintaining low acoustic output. Its construction focuses on steady airflow and reliable mechanical operation at 12 V, allowing it to run continuously in system environments where compact, persistent cooling is needed. The fan’s size and airflow characteristics enable cooling of components that cannot accept standard larger fans.

Suitable for

• Small form factor PC cases and mini-ITX builds
• Cooling of chipsets, voltage regulators (VRMs) and expansion cards
• Embedded systems, routers, and network appliances with limited space
• Auxiliary or spot cooling in desktops where larger fans cannot be mounted

Key specifications

• Type: Fan
• Fan diameter: 40 mm
• Thickness: 20 mm
• Rated voltage: 12 V
• Maximum rotational speed: 2800 RPM
• Airflow: 7.1 m³/h

How to use

Install the BlackSilentPro PM-1 in the designated fan mounting location using appropriate screws or mounting points for 40 mm fans. Connect the fan to a 12 V supply from the motherboard fan header or an appropriate power connector, observing correct polarity. Position the fan so that airflow direction matches the intended cooling path—intake or exhaust—within the chassis. Ensure there is adequate clearance for the 20 mm thickness and verify that the fan is secured firmly to reduce vibration transfer to the chassis. Regularly check that the fan spins freely and is free of dust buildup to maintain the specified airflow.

Usage recommendations

Use this fan where compact, continuous airflow is needed rather than as a primary cooling source for high-power components. For improved longevity and consistent performance, keep mounting points free of excessive vibration, ensure a stable 12 V supply, and perform periodic cleaning to prevent dust accumulation that can reduce airflow and increase noise.