Zyvpee A9225-20RB-4BP-F1 90mm 4-pin 2200RPM case fan

Compact 90 mm 4-pin case fan

The Zyvpee A9225-20RB-4BP-F1 is a 90 mm square frame fan with a 25 mm thickness designed for CPU cooler mounting. It runs on a 12 V supply drawing 0.4 A and uses a four-wire PWM connector for speed control. The ball bearing supports a speed range of 2000 to 2499 RPM with a nominal 2200 RPM rating. This unit suits builders replacing or upgrading a slim tower cooler fan.

PWM control limited to four-wire headers

The 4-pin connector enables motherboard PWM regulation but requires a compatible header; three-pin headers will run the fan at full voltage without speed modulation. The 12 V 0.4 A rating means the fan draws modest power, yet the header must supply sufficient current for start-up torque. No RGB or addressable lighting control is present, so the single red LED stays at fixed brightness whenever the fan receives power.

Ball bearing and red LED for visible airflow

Ball bearing construction reduces friction compared to sleeve designs, offering longer life in continuous operation. The black frame and blades blend into dark chassis interiors while the red LED provides a simple visual confirmation that the fan is spinning. Mounting holes follow the standard 90 mm pattern, so the fan fits common CPU cooler brackets without adapters. The 4-wire cable reaches typical motherboard headers in mid-tower cases.