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Small black 40 by 20 mm case fan with two wires

Zyvpee

Zyvpee AD0412HX-C50 40mm 4020 12V .11A 2 Wires case fan

SKU CH-KF73-ZJ3V3

A 40 by 20 millimetre hydraulic-bearing case fan running on 12 volts at 0.11 amps with a two-wire power connector

  • Bearing designHydraulic
  • Power input connector2 wires
  • LED lightingNon-LED
  • Product typeCase Fan Accessory
  • Product colorBlack
  • Key featuresCPU Fan
  • Hydraulic bearing reduces friction for longer life
  • 40 mm by 20 mm frame fits tight spaces
  • 12 V 0.11 A draw keeps power use low
  • Two-wire connector simplifies installation
  • Non-LED black design suits any build

Compact 40 mm hydraulic fan for tight builds

The Zyvpee AD0412HX-C50 is a 40 mm by 20 mm case fan designed for small-form-factor chassis, inverter coolers or auxiliary CPU spots where larger fans cannot fit. It runs on 12 V and draws 0.11 A through a simple two-wire connector, making it compatible with standard motherboard or controller headers. The hydraulic bearing and non-LED black frame suit builders who want a low-profile airflow upgrade without lighting distractions.

Quiet low-power operation at idle

In normal use the fan spins at modest speed, keeping noise low while moving enough air for light workloads or passive-component cooling. The two-wire design means speed is governed by voltage, so acoustic output stays consistent without PWM signalling overhead. Power draw remains at the rated 0.11 A, adding negligible load to a 12 V rail and leaving headroom for other peripherals.

Steady airflow under sustained load

When the system runs hot for extended periods the hydraulic bearing maintains stable rotation without the rattling that can develop in sleeve alternatives. Continuous 12 V operation keeps airflow constant, preventing the thermal throttling that short bursts cannot resolve. The compact 4020 footprint still limits total volume moved, so it suits targeted spot cooling rather than whole-case exhaust.

How it compares

Measured against everything we stock in PC Cooling Fans, at today’s prices. Recalculated every night.

Price $22.99
Pricier than about 58% of the 8,339 comparable items (median $19.99).

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Specifications

Product
Brand name3ccooler.com
Product lineAD0412HX-C50
Model nameAD0412HX-C50
Product typeCase Fan Accessory
Product colorBlack
Power
Power input connector2 wires
Size & build
Bearing designHydraulic
Product dimensions40 × 20 mm
More details
LED lightingNon-LED

Questions about this item

How do I install the 40mm 4020 fan and which step is often missed?

Mount the fan using the four corner holes on the 40x20mm frame, then connect the two-wire lead to a 12V header; the step often missed is checking airflow direction so the fan blows toward the heatsink instead of away from it.

What maintenance will the hydraulic bearing need later?

The hydraulic bearing is sealed and not user-serviceable; when noise or vibration appears after extended running, the whole fan must be replaced.

What limit appears first during sustained 12V 0.11A operation?

The hydraulic bearing’s lubricant life is the first limit; continuous 12V 0.11A load gradually degrades the fluid film, leading to rising noise and eventual seizure.

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