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Four small square 12V hydraulic-bearing fans with black frames and transparent blades, 40mm by 20mm, XH2.54 cables

LORDWORLD

LORDWORLD 40mm 12V Hydraulic Bearing Case Fan 4020 4-Pack

SKU CH-QP93-GFBCQ

Four 40 mm hydraulic-bearing fans deliver 8.5 CFM at 28.2 dBA for tight-space cooling

  • Compact 40 x 40 x 20 mm size fits tight spaces
  • Hydraulic bearing rated for 35000 hours of operation
  • 7900 RPM delivers 8.5 CFM airflow at 28.2 dBA
  • 12 V 0.11 A draw keeps power use low at 1.32 W
  • XH 2.54 connector with 300 mm leads simplifies wiring

Compact 12 V Hydraulic Bearing Fans

This four-pack supplies 40 mm hydraulic-bearing fans rated for DC 12 V operation. Each unit draws 0.11 A and 1.32 W while spinning at 7900 RPM, making them suited to 3D printer extruders, hotends, routers, Raspberry Pi boards, TV boxes, VR headsets and other small electronic enclosures that need focused airflow in tight spaces.

Practical Limits of the XH 2.54 Connector

The fans terminate in an XH 2.54 plug with a 300 mm lead, so they connect directly to 12 V headers that accept that pitch. Airflow reaches 8.5 CFM at 8.07 mm H₂O static pressure while noise stays at 28.2 dBA, which defines the cooling ceiling for any device using this form factor. Bearing life is rated at 35000 hours under continuous use.

Upgrade from Sleeve-Bearing 40 mm Fans

Builders replacing worn sleeve-bearing 40 mm fans gain longer service intervals and quieter operation at the same voltage and mounting footprint. The jump is worthwhile when the existing fans have become noisy, have reduced airflow after extended running, or when a project demands the 35000-hour rated lifespan for unattended operation.

Highlights

  • Compact 40 x 40 x 20 mm size fits tight spaces
  • Hydraulic bearing rated for 35000 hours of operation
  • 7900 RPM delivers 8.5 CFM airflow at 28.2 dBA
  • 12 V 0.11 A draw keeps power use low at 1.32 W
  • XH 2.54 connector with 300 mm leads simplifies wiring

Specifications

BrandLORDWORLD

Questions about this item

Should I pick the 4-pack or look for a single 4020 fan?

The 4-pack gives you four identical 40 mm hydraulic-bearing fans, each rated 12 V, 0.11 A and 7900 RPM, so you can cool multiple tight spots — 3D printer hot-ends, router vents or a Raspberry Pi case — without mixing models.

What does 7900 RPM actually deliver inside a small case?

At 7900 RPM each fan moves 8.5 CFM with 8.07 mmH₂O static pressure at 28.2 dBA, enough to push air through restrictive heatsinks or narrow ducts in mini-ITX builds and 3D-printer enclosures.

Will the XH 2.54 mm connector plug into a standard motherboard fan header?

No — the lead uses an XH 2.54 mm plug on 300 mm wires, so you need an adapter or a controller board that accepts that pitch; it will not fit a regular 3-pin or 4-pin PWM header directly.

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