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Small black square case fan 38 by 28 mm 4 pin connector

Zyvpee

Zyvpee MGT3812ZB-W28 38*28mm 12V 4-pin 2-ball >7000 RPM case fan

SKU CH-5HS2-BC93S

Compact 38 × 28 mm 12 V case fan with dual-ball bearings, four-pin PWM control and speeds above 7000 RPM

  • TypeCase Fan
  • CompatibilityCase
  • Bearing Type2 Ball
  • RPM>7000 RPM
  • Power Connector4 Pin
  • ColorBlack
  • 38 mm × 28 mm frame fits tight case spaces
  • 2-ball bearing design extends operating lifespan
  • 4-pin PWM connector enables precise speed control
  • >7000 RPM airflow clears heat from dense builds
  • 12 V DC input suits standard motherboard headers

Compact 38*28 mm case fan

The Zyvpee MGT3812ZB-W28 is a 12 V DC case fan measuring 38 by 28 mm with a 4-pin connector. Its dual ball bearing supports speeds above 7000 RPM for targeted airflow in tight chassis spaces. The non-LED black frame suits builds that need cooling without lighting.

PWM control and connector limits

The 4-pin PWM interface allows the motherboard to regulate speed automatically, but the fan draws 1 A at 12 V so the header must supply that current. Very small form-factor boards sometimes limit header amperage below this level. The square frame leaves no margin for misalignment in the mounting cutout.

Straightforward screw mounting

Four corner holes accept standard M3 screws for direct case or heatsink attachment. The short 38 mm width means vibration transfers easily if screws are overtightened or the surface is uneven. Dual ball bearings tolerate orientation changes but can develop audible whine at maximum RPM over time.

Points forts

  • 38 mm × 28 mm frame fits tight case spaces
  • 2-ball bearing design extends operating lifespan
  • 4-pin PWM connector enables precise speed control
  • >7000 RPM airflow clears heat from dense builds
  • 12 V DC input suits standard motherboard headers

Caractéristiques

SeriesMGT3812ZB-W28
ModelMGT3812ZB-W28
TypeCase Fan
CompatibilityCase
Bearing Type2 Ball
RPM>7000 RPM
Power Connector4 Pin
ColorBlack
LEDNon-LED
FeaturesDC square Cooler
Dimensions38*28mm

Questions sur cet article

Is the 38 × 28 mm size the only option for this fan?

Yes — the MGT3812ZB-W28 is offered in a single 38 × 28 mm form factor with a 4-pin 12 V connector and 2-ball bearing.

What does the >7000 RPM rating mean for actual airflow and noise inside a case?

The fan can exceed 7000 RPM, delivering very high airflow for its small frame, but expect noticeable noise at top speed; PWM control lets you lower RPM for quieter operation.

How does the 4-pin connector limit speed control compared to a 3-pin fan?

The fourth pin carries a PWM signal, so the motherboard can adjust speed precisely across the full range instead of only varying voltage like a 3-pin design.

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