OEM Industries KD0504PFS3-8 40mm Mgalev CPU cooler

40 mm Mgalev fan for compact cooling

The OEM Industries KD0504PFS3-8 is a 40 mm square cooling fan that uses a Mgalev bearing for low-friction operation. It runs on a 5 V supply and draws 0.4 W through a two-wire connection. The unit is intended for builders who need a small-form-factor airflow solution in tight chassis or on low-profile heatsinks.

Two-wire 5 V interface limits control options

Power is delivered through a simple two-wire lead, so the fan receives a fixed 5 V rail without PWM or tachometer feedback. Speed cannot be modulated by the motherboard and rotational data is not reported to monitoring software. Systems that rely on closed-loop fan curves or zero-RPM modes will not be able to manage this device.

0.4 W draw suits low-heat loads only

At 0.4 W the motor provides modest airflow suited to chipset heatsinks, small-form-factor CPUs or auxiliary component cooling. It lacks the static pressure and volume to handle high-TDP processors or densely finned radiators. Builds targeting sustained heavy loads will need a larger or higher-power cooling assembly.