Alphacool Apex Stealth Metal PWM Fan 2500 rpm, Chrome, 140x140x25 mm

Alphacool Apex Stealth Metal PWM Fan 2500 rpm, Chrome, 140x140x25 mm is a 140 mm high-speed cooling fan designed for PC cases and liquid-cooling radiators. The fan uses PWM control to adjust rotational speed up to 2500 rpm, allowing integration into system fan curves for targeted airflow and noise management. The chrome finish and metal frame offer an industrial look and increased rigidity compared with typical plastic fans, while the 25 mm thickness provides compatibility with common radiator and case mounting configurations.

Advantages

The Apex Stealth Metal fan delivers adjustable high airflow with PWM control, enabling precise speed regulation across a wide RPM range. Its metal frame improves structural stability and heat resistance compared with standard polymer housings. With a maximum speed of 2500 rpm, the fan is suited for applications that require elevated static pressure or airflow, and the chrome finish contributes to a durable exterior appearance that resists minor scratches and wear.

Suitable for

• Case ventilation in desktop PCs that need higher airflow
• Push or pull configuration on liquid cooling radiators
• Cooling high-heat components in overclocked systems (CPU/GPU)
• Systems where PWM-based fan speed control is required

When it may not be suitable

This fan may not be the best choice for ultra-quiet systems where minimal noise at idle is the priority, since its maximum 2500 rpm rating emphasizes performance over silent operation. It may also be unnecessary for compact or low-power builds that do not require strong airflow or elevated static pressure. Ensure the fan dimensions and thickness match your case or radiator mounting before purchase.

Key specifications

• Size: 140 x 140 x 25 mm
• Control: PWM (pulse-width modulation) for automatic speed adjustment
• Maximum rotational speed: 2500 rpm
• Frame material: metal (chrome finish)
• Application: case cooling and radiator use

How to use

Mount the fan using the standard 140 mm screw pattern to the case or radiator bracket, observing airflow direction indicated on the frame. Connect the fan to a motherboard PWM header or a PWM-capable fan controller to allow automatic speed regulation. When used on a radiator, consider push, pull, or push–pull configurations to optimize thermal performance. Regularly inspect and clean the fan blades and frame to prevent dust buildup that can reduce performance and increase noise.

What to consider before purchase

• Confirm compatibility with your case or radiator mounting holes and available thickness clearance
• Ensure you have a PWM-capable header or controller to take advantage of speed control
• Consider noise vs performance trade-off at higher RPMs
• Check that the chrome finish and metal frame meet your system aesthetic and weight tolerances

Usage recommendations

For balanced cooling, configure the fan with motherboard fan curves to reduce speed at low loads and increase RPM under heavy CPU/GPU demand. When fitting multiple fans on a radiator, match identical models to ensure uniform airflow and static pressure. Periodic cleaning and verifying secure mounting will preserve performance and minimize vibration.