45J9605 - 92x92x25mm 4-Pin PWM Case Cooling Fan for ThinkStation S30 / D30 / C30 / S20 / D20 / C20

41R5583 - Lenovo 92mm 4-Pin PWM Case Cooling Fan for ThinkStation S30 / D30 / C30 / S20 / D20 / C20

This 92mm case cooling fan is designed to maintain efficient airflow and thermal regulation in select ThinkStation workstations. It features a 4-pin PWM connector for variable speed control, allowing the system to adjust fan speeds based on real-time temperature demands. Ideal as a replacement or upgrade, this fan supports quiet operation with its ball bearing design and is compatible with multiple ThinkStation tower models.

 Technical Specifications

✅ Confirmed Compatibility

Please note that the following list is not exhaustive. Compatibility depends on your system's specific configuration. It's essential to verify compatibility with your system or enclosure manufacturer prior to installation.

✔ Lenovo ThinkStation Workstations:
S30, D30, C30, S20, D20, C20

 Key Features

• ✅ OEM-Grade Reliability: Designed to match Lenovo's original performance standards
• ✅ PWM Speed Control: Adapts dynamically to cooling demands via 4-pin header
• ✅ Quiet Operation: Equipped with ball bearings for low-noise airflow
• ✅ Easy Installation: Standard 92mm form factor with vibration-reducing mounts
• ✅ Cross-Compatible: Supports a wide range of ThinkStation models and part numbers

 Interchangeable Part Numbers

• 41R5583
• 41R5595
• 45J9605
• DS09225T12U