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Small black CPU cooling fan with four-wire connector

CAFELE

CAFELE CPU Cooler Fan for HP Probook 640 645 650 655 G1 4-wire

SKU CH-TWCA-83P0Q

Replacement CPU cooling fan with four-wire connector for HP ProBook 640, 645, 650 and 655 G1 laptops

  • TypeCPU Cooler Fan
  • Direct replacement for HP Probook 640 G1, 645 G1, 650 G1, 655 G1
  • Four-wire connector enables precise PWM speed control
  • Matches OEM part numbers 738685-001, DFS501105PR0T, 6033B0034401
  • Supplied new and ready to install

Compatible HP ProBook Models

This 4-wire CPU cooler fan is built for HP ProBook 640 G1, 645 G1, 650 G1 and 655 G1 laptops. It matches part numbers 738685-001, DFS501105PR0T and 6033B0034401. The unit is supplied new and intended as a direct replacement for the original cooling assembly.

Connector and Fit Verification

The four-wire connector is the single specification that decides compatibility; it must match the motherboard header on the listed ProBook models. Buyers whose laptop uses a different pin count or a different part number cannot use this fan.

Highlights

  • Direct replacement for HP Probook 640 G1, 645 G1, 650 G1, 655 G1
  • Four-wire connector enables precise PWM speed control
  • Matches OEM part numbers 738685-001, DFS501105PR0T, 6033B0034401
  • Supplied new and ready to install

Specifications

TypeCPU Cooler Fan

Questions about this item

How does the 4-wire connector affect fan control inside the laptop?

The 4-wire design provides a PWM signal so the motherboard can vary the fan speed precisely instead of only running at full speed or off.

What does the 4-wire interface cap in practice?

It caps the control method to PWM regulation, allowing the system board to adjust RPM dynamically based on CPU temperature.

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