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Small black 40mm square sleeve fan with two wires

OEM Industries

OEM Industries KF0420S5H-R 40mm 20mm 5V 1.3W 2 Pin Sleeve Fan

SKU CH-JZZW-JS4GG

A compact 40 mm sleeve-bearing fan running at 5 V and 1.3 W for notebook or small-form-factor cooling

  • Fan size40 mm
  • Bearing designSleeve bearing
  • Power input connector2 Pin
  • Product colorBlack
  • Product typeFan only
  • Compact 40 mm frame fits tight laptop chassis
  • 5 V 1.3 W draw keeps power use low
  • Sleeve bearing runs quietly at low speeds
  • Two-pin connector plugs straight into notebook headers
  • Black finish blends with internal components

Compact 40 mm Sleeve Fan for Tight Chassis

The OEM Industries KF0420S5H-R is a 40 mm square fan only 20 mm thick that runs on 5 V and draws 1.3 W through a two-pin connector. Its sleeve bearing keeps the profile low while moving air through notebook coolers, small-form-factor cases or embedded enclosures where larger fans will not fit.

Replaces Noisy or Failed Stock 4020 Fans

Swap this unit in when an original 4020 cooler becomes loud, develops bearing rattle or stops spinning. The direct 5 V two-wire interface matches most legacy laptop and industrial boards, so the upgrade is worthwhile whenever the existing fan shares the same voltage, connector and mounting holes.

Suits Repair Technicians and SFF Builders

Technicians servicing thin laptops, 1U servers or custom electronics will appreciate the exact 40 mm by 20 mm footprint and black sleeve-bearing design. Builders who need PWM speed control, higher static pressure or a larger frame should look at other cooling options because this model provides only fixed-speed two-pin operation.

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 40 mm
Lower than about 90% of the 812 comparable items (median 80 mm).

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Specifications

Product
Model nameKF0420S5H-R
Product colorBlack
Product typeFan only
Power
Power input connector2 Pin
Size & build
Fan size40 mm
Bearing designSleeve bearing
More details
LED lightingNo

Questions about this item

Will the 40 mm by 20 mm frame fit my laptop's fan slot?

The fan measures 40 mm square and 20 mm thick, so it fits any opening that accepts a standard 4020 form factor.

How do I connect the two-pin power lead correctly?

Plug the 2-pin connector onto a 5 V header matching the 1.3 W draw; reversing the wires will prevent the fan from spinning.

When should I plan to replace the sleeve-bearing fan?

Sleeve bearings typically last several years at 5 V; replace the unit once audible rumble or reduced airflow appears.

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