Case fan NoiseBlocker NB-eLoop B14-PS 140mm PWM, model ITR-B14-PS

The NoiseBlocker NB-eLoop B14-PS 140mm PWM (model ITR-B14-PS) is a case fan engineered to provide stable airflow and controlled cooling for PC chassis. Featuring NoiseBlocker's eLoop impeller design and PWM speed control, this 140mm fan is intended to reduce noise levels while maintaining effective ventilation for components. It mounts in any standard 140mm fan location and is suitable for intake, exhaust, or radiator-assist configurations where predictable airflow and adjustable speed are required.

Advantages

The eLoop blade geometry is designed to produce consistent airflow with reduced turbulence compared to conventional fan designs. PWM control enables automatic speed adjustment based on motherboard or fan controller signals, allowing quieter operation at low loads and higher cooling capacity when temperatures rise. The 140mm size offers a balance between airflow and low RPM operation, helping to lower audible noise while moving a substantial volume of air. The construction and bearing choices support prolonged operation suitable for continuous system use.

Suitable for

• Case ventilation (intake or exhaust) in desktop PCs
• Cooling behind radiators or in airflow-optimized chassis
• Systems where PWM-based speed control is desired
• Quiet or low-noise desktop builds

Key specifications

• Fan size: 140 mm
• Control: PWM speed control
• Blade technology: eLoop impeller design
• Typical application: chassis cooling, radiator support
• Mounting: standard 140mm mounting pattern

How to use

Install the fan in a standard 140mm mounting location using the appropriate screws or vibration-damping mounts. Connect the PWM cable to a compatible 4-pin header on the motherboard or to a PWM-capable fan controller. Configure fan curves in BIOS or software to establish desired temperature-to-speed behavior; default automatic control will allow the fan to scale its RPM based on system temperatures. Ensure airflow direction is correct for the intended role (intake or exhaust) and that the fan has adequate clearance from nearby components or cables.

Recommendations

For quieter operation, position the NB-eLoop B14-PS as an intake or exhaust in a location that allows unobstructed airflow and set conservative PWM curves so the fan runs at lower RPM during idle. When used with radiators, verify that the fan spacing and push/pull configuration match the radiator manufacturer's guidance to optimize thermal performance.