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Tiny black square 18mm fan with two wires

Zyvpee

Zyvpee RFB1804 18*04mm 5V 0.25W 2-wire case fan

SKU CH-5XE0-2YAWY

An 18 mm square 5 V case fan with hydraulic bearing and two-wire power for compact CPU-cooler airflow

  • TypeCase Fan
  • CompatibilityCPU Cooler
  • Bearing TypeHydraulic
  • Power Connector2 Wires
  • ColorBlack
  • LEDNon-LED
  • Compact 18 mm frame fits tight CPU coolers
  • Hydraulic bearing runs quietly at low power
  • 5 V 0.25 W draw keeps energy use minimal
  • Two-wire DC power simplifies wiring in small builds
  • Drone-blower airflow design targets 3C component heat

Compact 1.8 cm blower for tight spaces

The Zyvpee RFB1804 is an 18 mm square, 4 mm thick case fan that runs on 5 V and draws 0.25 W through a two-wire DC connector. Its hydraulic bearing and non-LED black frame suit small-form-factor builds and 3C electronic devices where a low-profile blower is required.

Sustained low-power airflow

At a constant 5 V input the fan delivers steady airflow without the spin-up spikes seen in higher-wattage models. The hydraulic bearing maintains consistent speed during continuous operation, and the 0.25 W draw keeps heat contribution negligible inside sealed enclosures.

Two-wire DC power limit

The 2-wire interface supplies fixed-voltage power only, so speed cannot be modulated by PWM or voltage control from a motherboard header. Builders needing variable fan curves or tachometer feedback must add external circuitry, and the 5 V rail must be sourced from a compatible supply.

Points forts

  • Compact 18 mm frame fits tight CPU coolers
  • Hydraulic bearing runs quietly at low power
  • 5 V 0.25 W draw keeps energy use minimal
  • Two-wire DC power simplifies wiring in small builds
  • Drone-blower airflow design targets 3C component heat

Caractéristiques

SeriesRFB1804
ModelRFB1804
TypeCase Fan
CompatibilityCPU Cooler
Bearing TypeHydraulic
Power Connector2 Wires
ColorBlack
LEDNon-LED
FeaturesDC square Cooler
Dimensions18*04mm

Questions sur cet article

How loud and warm does the 18 mm RFB1804 get when running continuously at 5 V?

The fan draws 0.25 W from a 5 V supply, so heat output is very low; with a hydraulic bearing it runs quietly enough for always-on cooling in small enclosures.

What power source must I already have to run this 2-wire blower?

You need a 5 V DC supply that can deliver at least 0.25 W and a 2-pin header or solder points matching the fan’s two wires.

Will the 1.8 cm square frame line up with the mounting points on my older CPU cooler?

The fan measures 18 mm by 4 mm overall; check your cooler’s hole spacing against those dimensions before installing.

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