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Two-tone laptop CPU cooler fan with 4-pin connector

OEM Industries

OEM Industries BASB1125R2H 12V .4A 4 Pin CPU cooler

SKU CH-7SP5-JGA3A

12V hydraulic-bearing CPU fan with 4-pin PWM control for laptop coolers

  • Bearing designHydraulic
  • Power input connector4 Pin
  • Product color2-Tone
  • Product typeFan only
  • Hydraulic bearing runs quietly and lasts longer
  • 12 V 0.4 A draws minimal power from the system
  • 4-pin connector enables precise PWM speed control
  • Blower design directs airflow across tight laptop heatsinks
  • New condition guarantees factory-fresh reliability out of the box

Laptop CPU cooler for 12 V systems

The OEM Industries BASB1125R2H is a 12 V, 0.4 A blower-style fan designed for notebook thermal modules. It connects through a standard four-pin power header and uses a hydraulic bearing for quiet operation. The unit is supplied new as a fan-only component without heatsink or LED lighting.

Cooling capacity limited to low-power mobile CPUs

This blower moves air through a compact duct suitable for ultrabook-class processors and all-in-one cooler loops. It cannot sustain the heat load of high-wattage desktop chips or discrete mobile GPUs under prolonged stress. Builders needing greater airflow should select a larger cooler assembly.

Four-pin PWM connector decides compatibility

The 4-pin header provides speed reporting and PWM control required by modern laptop fan headers. Systems with two-pin or three-pin sockets will not regulate this fan correctly. Verify the motherboard header pin count before ordering.

How it compares

Measured against everything we stock in CPU Coolers & Heatsink Fans, at today’s prices. Recalculated every night.

Price $25.99
Pricier than about 72% of the 1,559 comparable items (median $19.99).

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Specifications

Product
Model nameBASB1125R2H
Product color2-Tone
Product typeFan only
Power
Power input connector4 Pin
Size & build
Bearing designHydraulic
More details
LED lightingNo

Questions about this item

Will the 4-pin connector on this BASB1125R2H fan work with my older laptop motherboard that uses a 3-pin header?

The 4-pin connector provides PWM control and is backward compatible with 3-pin headers; the fan will run at full speed if the fourth pin is not used.

How can I verify the hydraulic bearing fan is spinning correctly after I install it?

Connect the 4-pin header, power on the system, and confirm the fan RPM reports in BIOS or monitoring software; the hydraulic bearing should run quietly without grinding.

Does the package include mounting screws or a heatsink, or is it only the blower fan unit?

The product is listed as a fan only with 4-wire 4-pin connection; no heatsink, screws, or additional mounting hardware are mentioned in the specifications.

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