Zyvpee 1611KL-04W-B29 40×28 mm 12 V 0.11 A 3-pin case fan

Compact 40 mm CPU cooler fan

The Zyvpee 1611KL-04W-B29 is a 40 by 28 millimetre axial fan designed for CPU cooler compatibility. It operates on 12 volt DC power and draws 0.11 ampere through a three pin connector. The black non LED housing uses a ball bearing for rotation. This unit suits builders replacing a same size cooler fan or fitting tight spaces where a 40 millimetre frame is required.

Ball bearing thermals and low current draw

Ball bearing construction provides consistent airflow with reduced friction over sleeve alternatives. The 0.11 ampere rating at 12 volts indicates modest power consumption for a fan of this class. Three pin wiring allows voltage based speed control from a motherboard header. Noise and thermal output remain proportional to the voltage applied in normal operation.

Direct replacement for 4028 form factor coolers

This fan matches the 4028 footprint and three pin interface found on many compact CPU coolers. It upgrades worn or noisy units of identical dimensions and pinout without modification. The jump is worth it when the original bearing has failed or acoustic levels have risen beyond tolerance. Buyers needing larger frames, PWM control or LED lighting should look elsewhere.