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Black 80 mm square case fan with hydro bearing and 4 pin connector

SXDOOL

SXDOOL 80mm case fan 12V 2500 RPM 11dBA Hydro 4-pin

SKU CH-R4DV-0E2B2

An 80mm hydro-bearing case fan running at 2500 RPM with 11dBA noise and a 4-pin connector

  • Fan size80 mm
  • Quiet operation at 11 dBA for silent builds
  • Hydro bearing reduces friction and extends fan life
  • 2500 RPM delivers strong airflow for cooling
  • 4-pin connector enables precise PWM speed control
  • Compact 80 mm frame fits tight chassis spaces

80 mm Hydro-bearing case fan

This 80 mm case fan uses a hydro bearing and a four-pin power connector to deliver quiet airflow for compact builds or graphics-card cooling. It suits system builders who need a slim 25 mm profile in a standard 80 mm frame.

Thermals and acoustics

At 2500 RPM the fan produces only 11 dBA, keeping noise low while moving air through tight chassis spaces. The 12 V DC input provides steady power without excessive draw during normal operation.

Four-pin PWM control

The 4-pin connector enables precise speed regulation via motherboard PWM headers, letting the system balance cooling and silence automatically. Buyers who need a three-pin voltage-controlled fan or a larger frame size should look elsewhere.

How it compares

Measured against everything we stock in PC Cooling Fans, at today’s prices. Recalculated every night.

Price $11.99
Cheaper than about 85% of the 8,339 comparable items (median $19.99).
Fan size 80 mm
Lower than about 75% of the 1,114 comparable items (median 120 mm).

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Specifications

Product
Brand nameDelta
Size & build
Fan size80 mm

Questions about this item

How do I connect the 4-pin power connector and which step do people often miss?

Plug the 4-pin connector into a motherboard or controller header, ensuring the tab aligns; the step often missed is confirming the header supplies 12 V PWM control rather than fixed voltage.

What maintenance will the hydro bearing need over time?

The hydro bearing is sealed and requires no lubrication; if noise rises above the rated 11 dBA after extended use, replace the fan.

At what point does the 2500 RPM speed become the limiting factor under sustained load?

At 2500 ± 10 % RPM the airflow reaches its maximum; sustained loads that demand more cooling will hit this speed ceiling first.

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