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Small black 40mm square DC fan with two wires

OEM Industries

OEM Industries C4020X12BPCP0c-5 40mm fan 12V 0.168A 2-wire

SKU CH-0TT7-TXX74

A 40 mm DC fan with 12 V and .168 A power draw using a 2-wire connection

  • ColorBlack
  • TypeFan only
  • Fan Size40mm
  • LEDNo
  • Compact 40 mm frame fits tight CPU cooler builds
  • 12 V DC motor runs directly from standard fan headers
  • Low 0.168 A draw keeps power use minimal
  • Simple two-wire connection enables quick installation
  • Black finish blends with dark-themed component aesthetics

Compact 40mm DC Fan

This 40 mm square DC fan is designed for tight chassis spaces where a low-profile cooling solution is required. It operates on a 12 V supply drawing 0.168 A through a simple two-wire connection. The unit is a fan-only component without integrated LED lighting. It suits builders assembling small form factor systems or replacing a specific 4020 model cooler.

Airflow Capacity and Limits

The compact frame delivers airflow proportional to its 40 mm dimensions and 12 V 0.168 A power rating, handling modest thermal loads in confined areas. It runs out of capacity when cooling high-wattage processors or densely packed components that demand greater static pressure. The two-wire design provides no speed feedback or PWM control, so airflow remains constant rather than scaling with temperature.

Two-Wire Interface Constraints

The 2-wire power interface supplies voltage and ground only, lacking a tachometer or PWM signal line. This prevents the motherboard from monitoring fan speed or adjusting duty cycle automatically. The fan will spin at full rated speed whenever 12 V is present, which limits acoustic optimisation and prevents low-speed idle operation. Builders needing variable control must add an external voltage regulator.

Punti di forza

  • Compact 40 mm frame fits tight CPU cooler builds
  • 12 V DC motor runs directly from standard fan headers
  • Low 0.168 A draw keeps power use minimal
  • Simple two-wire connection enables quick installation
  • Black finish blends with dark-themed component aesthetics

Caratteristiche tecniche

ModelC4020X12BPCP0c-5
ColorBlack
TypeFan only
Fan Size40mm
LEDNo

Domande su questo articolo

Will the 40mm fan clear the VRM heatsink on my older motherboard?

The 40mm square frame fits standard 4020 mounting holes, so it will clear most legacy VRM heatsinks that accept a 40mm fan.

How do I confirm the fan is spinning at the correct speed after installation?

Connect the two wires to a 12V header; the fan should draw about 0.168A and spin steadily without audible clicking.

Does the package include mounting screws or a power adapter?

The box contains only the C4020X12BPCP0c-5 fan unit; screws and any 12V adapter must be sourced separately.

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