We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Small square 40mm cooling fan with black frame and transparent blades

SXDOOL

SXDOOL DLF0412HB 40x40x20mm 12V 4700rpm 23dBA hydraulic case fan

SKU CH-5HT9-0ASWF MPN DLF0412HB

Compact 40x40x20mm 12V case fan with hydraulic bearings runs at 4700rpm while producing only 23dBA noise

  • Product typeCase Fan
  • Quiet operation at 23dBA for low-noise builds
  • Hydraulic bearings extend service life and reduce friction
  • Compact 40x40x20mm size fits tight chassis spaces
  • Wide 4V-13V range allows flexible voltage control
  • Low 0.05A draw keeps power consumption minimal

Compact 40 mm hydraulic fan

The SXDOOL DLF0412HB is a 40x40x20 mm case fan designed for tight spaces such as small-form-factor PCs, network switches or inverter enclosures. It runs on a 12 V supply and draws only 0.05 A, making it suitable for low-power auxiliary cooling tasks.

Hydraulic bearing for quiet operation

The hydraulic bearing reduces friction, allowing the fan to spin at 4700 rpm while keeping noise to 23 dBA. An operating range of 4 V to 13 V lets builders lower the voltage for even quieter running, and the 4.3 CFM airflow handles modest heat loads in confined areas.

Simple two-wire installation

The fan connects via standard two-pin power leads; polarity must be observed to avoid damage. The 20 mm thickness fits most 40 mm mounts, but builders should verify clearance around cables and nearby components before securing the screws.

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).

New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Product typeCase Fan

Questions about this item

How long do the hydraulic bearings in the DLF0412HB typically last before replacement?

Hydraulic bearings generally run for tens of thousands of hours; the fan draws only 0.05 A at 12 V, so thermal stress on the bearing is low.

What limits continuous operation at the rated 4700 rpm speed?

The 4 V to 13 V working range and 0.05 A current draw mean the motor stays well within its thermal envelope at full speed.

How much noise and heat does the fan produce when running all day at 4700 rpm?

It emits 23 dBA and moves 4.3 CFM while drawing just 0.05 A, so audible noise and added heat are minimal.

More in PC Cooling Fans

Similar items