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Black 120mm square fan with 4-pin PWM connector

OEM Industries

OEM Industries DS12025B12U 120mm 4 Pin PWM Fan CPU Cooler

SKU CH-1RBP-D09NJ

120 mm PWM fan with ball bearing and 4-pin connector for CPU or case cooling

  • Fan size120 mm
  • Bearing designBall
  • Power input connector4 Pin
  • Product colorBlack
  • Product typeFan only
  • 120 mm fan fits standard CPU cooler mounts
  • 4-pin PWM connector enables automatic speed control
  • Ball bearing design extends operating lifespan
  • 12 V 1.05 A rating delivers strong airflow
  • 120 x 25 mm frame suits compact case builds

120mm PWM fan for CPU coolers

This 120mm square fan connects via a standard 4-pin PWM header and runs on 12V at 1.05A. It is built with a ball bearing for continuous operation inside a chassis or mounted on a heatsink. The black frame suits low-profile builds.

Thermals noise and power draw

PWM control lets the motherboard adjust speed to match thermal load so the fan only draws the current it needs. Ball-bearing construction keeps acoustic output steady over time without the rattle that sleeve bearings can develop. The 12V 1.05A rating defines its maximum electrical draw.

4-wire PWM connector decides fit

The 4-pin connector is the single specification that determines whether this fan works with your header; 3-pin headers will run it at full speed without speed reporting. Buyers who need a 3-pin only fan or a 5V ARGB header should look elsewhere.

How it compares

Measured against everything we stock in CPU Coolers & Heatsink Fans, at today’s prices. Recalculated every night.

Price $21.99
Pricier than about 60% of the 1,559 comparable items (median $19.99).
Fan size 120 mm
Higher than about 80% of the 812 comparable items (median 80 mm).

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Specifications

Product
Model nameDS12025B12U
Product colorBlack
Product typeFan only
Power
Power input connector4 Pin
Size & build
Fan size120 mm
Bearing designBall
More details
LED lightingNo

Questions about this item

How do I mount the DS12025B12U fan onto a 120mm heatsink and which step is often missed?

Align the four corner holes with the heatsink brackets, secure each screw diagonally, then plug the 4-pin PWM connector into the CPU fan header so the motherboard can control speed.

What maintenance will the ball-bearing fan need over its life?

The ball bearing is sealed and requires no lubrication; periodically blow dust from the blades and frame with compressed air to keep airflow at spec.

What limit appears first when the fan runs at full PWM duty for long periods?

At maximum 12V 1.05A input the motor draws its rated current, so the 4-wire PWM circuit and ball bearing become the limiting factors for sustained operation.

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