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Black circular cooling fan with four-pin connector

OEM Industries

OEM Industries CF1275-B30H-C005 12V 1.0A 4 Pin Fan

SKU CH-2G1Y-QHS36

A 12V 1.0A four-pin ball-bearing fan compatible with HD4870X2, HD4870 and HD6850 graphics cards

  • ColorBlack
  • TypeFan only
  • Bearing TypeBall
  • Power Connector4 Pin
  • LEDNo
  • 12 V 1.0 A power draw keeps energy use low
  • Ball bearing design extends operational lifespan
  • Four-pin connector enables precise PWM speed control
  • Direct fit for Sapphire ATI HD 4870 X2 HD 4870 HD 6850 cards
  • Fan-only unit simplifies GPU cooler repairs

Replacement Fan for HD4870 and HD6850

The OEM Industries CF1275-B30H-C005 is a 12V 1.0A 4-pin cooling fan designed specifically for Sapphire ATI HIS graphics cards. It serves as a direct replacement component for the HD4870X2, HD4870, and HD6850 models. The unit uses a ball bearing for durable operation and features a black finish with no LED lighting.

For Repairing Specific Legacy Cards

This part suits technicians or owners restoring the exact Sapphire models listed in the specifications. It is not suitable for other graphics cards, different cooler assemblies, or case ventilation roles because the mounting and connector are tailored to those specific boards. Buyers needing a different pin layout, voltage, or physical dimensions must source a different fan.

4-Pin 12V 1.0A Connector Compatibility

The defining specification is the 4-wire 4-pin power connector rated at 12V and 1.0A, which must match the original graphics card header exactly. Verify that the faulty unit carries the identical CF1275-B30H-C005 model code before ordering. A mismatched connector or current rating will prevent installation or risk component damage.

Punti di forza

  • 12 V 1.0 A power draw keeps energy use low
  • Ball bearing design extends operational lifespan
  • Four-pin connector enables precise PWM speed control
  • Direct fit for Sapphire ATI HD 4870 X2 HD 4870 HD 6850 cards
  • Fan-only unit simplifies GPU cooler repairs

Caratteristiche tecniche

ModelCF1275-B30H-C005
ColorBlack
TypeFan only
Bearing TypeBall
Power Connector4 Pin
LEDNo

Domande su questo articolo

My graphics card is an HD4870X2 — will this CF1275-B30H-C005 fit as a direct replacement?

The supplier lists this fan for Sapphire ATI HIS HD4870X2, HD4870 and HD6850 cards, so it matches the original cooler on those models.

I still use an older motherboard with only three-pin fan headers — can I run this 4-pin fan on it?

A 4-pin PWM fan will spin on a 3-pin header, but speed control reverts to voltage mode and you lose PWM regulation.

After installing the fan, how can I confirm the ball bearing is running smoothly at 12 V 1.0 A?

Check that the fan spins quietly at full speed in the GPU control panel and that the reported current draw stays near 1.0 A.

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