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Black 80mm square cooling fan with 4-pin connector and oil bearing

Ruth's sister

Ruth's sister 8025 80mm 12V 4-pin internal power cable

SKU CH-ZQ9X-PTM5W

An 80 mm oil-bearing chassis fan with a 4-pin 12 V connector runs at 1200 rpm and delivers 26 to 58 cfm at 18 to 35 dB

  • Oil-bearing sleeve runs quietly at 18-35 dB noise
  • 4-pin 12 V connector fits standard PSU headers
  • 80 × 80 × 25 mm frame installs in 80 mm bays
  • 1200 ± 10 % rpm delivers 26-58 cfm airflow
  • 40 000-hour rated life reduces replacement frequency

80 mm 12 V 4-pin chassis fan

This 80 mm square fan fits a standard 8025 mounting pattern and runs from a 12 V four-pin header. It is intended for builders who need a direct replacement or additional airflow in a computer chassis. Buyers who require a different voltage, connector type or frame depth will need another model.

Thermals noise and power draw

Rated speed is 1200 rpm with a tolerance of ±10 %, delivering an air volume between 26 and 58 cfm. Acoustic output ranges from 18 to 35 dB with a ±3 dB variance, while the oil-containing bearing is rated for 40 000 hours of service life. Power consumption follows the 12 V supply rail.

8025 mounting and four-pin interface

The frame measures 80 mm by 80 mm by 25 mm, matching the 8025 form factor used in many power supplies and chassis. A four-pin plug provides both power and speed control on a single connector. Verify that your device has the matching header and clearance before purchase.

Highlights

  • Oil-bearing sleeve runs quietly at 18-35 dB noise
  • 4-pin 12 V connector fits standard PSU headers
  • 80 × 80 × 25 mm frame installs in 80 mm bays
  • 1200 ± 10 % rpm delivers 26-58 cfm airflow
  • 40 000-hour rated life reduces replacement frequency

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the 8025 fan with its 4-pin interface and what step do people often miss?

Align the 4-pin connector with the motherboard or fan-controller header, press it straight in until it clicks, and verify the keyed notch matches — the step most people miss is forgetting to check the notch orientation before forcing the plug.

What maintenance will the oil-containing 8025 fan need after its 40000-hour service life?

The sleeve bearing is sealed with lubricating oil and is not user-serviceable; once the 40000-hour rating is reached the entire 80 mm fan should be replaced rather than re-oiled.

At what noise level does the 8025 fan hit its limit during sustained 1200 rpm operation?

Under continuous load the fan tops out at 35 dB ± 3 dB, which is the acoustic ceiling you will hear before thermal or voltage limits are reached.

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