SunnyStar Co., Ltd
SunnyStar Co., Ltd 405038-12HB HAB 40*38mm 12V .75A 3 Pin case fan
40 mm ball-bearing case fan with 3-pin connector runs at 12 V and 0.75 A for compact server cooling
- TypeCase Fan
- CompatibilityCase
- Bearing TypeBall
- Power Connector3 Pin
- ColorBlack
- LEDNon-LED
- 12 V, 0.75 A power draw for efficient server cooling
- Ball bearing ensures reliable long-term operation
- 40 × 40 × 38 mm frame fits compact 4 cm bays
- Three-pin connector with five wires for speed monitoring
- Non-LED black design keeps builds clean and professional
40 mm ball-bearing case fan
The SunnyStar 405038-12HB is a 40 mm by 38 mm case fan that runs on 12 V and draws 0.75 A through a three-pin power connector. Ball bearings and a black non-LED frame are built for continuous airflow in tight chassis.
Server and compact-system builders
This fan suits servers or small-form-factor cases that accept a 40 mm mounting pattern and a three-pin header. Builders who need PWM speed control, larger diameters or RGB lighting should look at other models.
Three-pin 12 V power connector
The 3-pin header delivers fixed 12 V power without PWM signalling, so the fan runs at a constant speed unless the motherboard or controller supports voltage-based regulation.
Besonderheiten
- 12 V, 0.75 A power draw for efficient server cooling
- Ball bearing ensures reliable long-term operation
- 40 × 40 × 38 mm frame fits compact 4 cm bays
- Three-pin connector with five wires for speed monitoring
- Non-LED black design keeps builds clean and professional
Technische Daten
| Series | 405038-12HB HAB |
|---|---|
| Model | 405038-12HB |
| Type | Case Fan |
| Compatibility | Case |
| Bearing Type | Ball |
| Power Connector | 3 Pin |
| Color | Black |
| LED | Non-LED |
| Features | DC square Cooler |
| Dimensions | 40*40*38mm |
Fragen zu diesem Artikel
How do I install the 405038-12HB HAB fan in a 40 mm mounting hole, and which step is often missed?
Align the 40 mm square frame with the case holes, insert the four mounting screws through the fan corners, then connect the 3 pin power connector to the motherboard header — the step often missed is seating the connector fully so all three pins make contact.
What maintenance will the ball bearing in this 12 V .75 A fan need over time?
The ball bearing is sealed and does not require lubrication; if noise or vibration appears after extended use, replace the entire 405038-12HB HAB unit rather than attempting bearing service.
What is the first limit reached when this 40*38 mm fan runs continuously at 12 V?
Continuous operation at the rated 12 V and .75 A will eventually hit the ball bearing’s wear life, which typically becomes audible as increased noise before airflow drops below usable levels.
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