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Laptop CPU Cooling Fan Replacement for Multiple Notebook Models B40-30, B40-45, B40-70, B40-80, B41-35, B41-30, B41-80, B50-30, B50-45, B50-70, B50-80, B51-35, DC5V 4-Pin PWM Internal CPU Radiator
- - Cross compatible with notebook series: B40-30, B40-45, B40-70, B40-80, B41-35, B41-30, B41-80, B50-30, B50-45, B50-70, B50-80, B51-35
- - DC5V 4-Pin PWM connector supports temperature-responsive automatic speed adjustment
- - Precision fan blades quickly discharge CPU heat to prevent thermal throttling and random shutdowns
- - Exact mounting holes and matching connector, plug-and-play swap with no soldering required
- - Each fan passes strict rotation, electrical continuity and noise testing before shipment
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internal laptop CPU cooling fan is a direct replacement part compatible with B40-30, B40-45, B40-70, B40-80, B41-35, B41-30, B41-80, B50-30, B50-45, B50-70, B50-80 and B51-35 notebooks. It solves common issues of original fans such as grinding noise, stuck blades and poor cooling performance. The 4-pin PWM fan dynamically adjusts speed according to CPU temperature. Optimized fan blades exhaust processor heat efficiently, lowering internal temperature and avoiding performance lag and automatic shutdown during office work and multi-tasking. It runs smoothly with low vibration for quieter daily use. The mounting positions and 4-Pin connector fully match the original fan assembly. Simple notebook disassembly enables fast replacement without wire cutting or soldering. Every fan undergoes full quality inspection before packaging to restore your laptop thermal protection.
- Compatible Laptop:B40-30, B40-45, B40-70, B40-80, B41-35, B41-30, B41-80, B50-30, B50-45, B50-70, B50-80, B51-35
- Type:Notebook CPU Cooling Fan
- Operating Voltage:DC 5V
- Interface:4-Pin PWM Connector
- Application:Laptop CPU Heat Dissipation
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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Return Policies
- Return for refund within: 30 days
- Return for replacement within: 30 days
- This item is covered by ThermalNest Return Policy
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