WINSINN 40mm Fan 5V Dual Ball Bearing Brushless 4020 40x20mm for Cooling PC North South Bridge Chip - High Speed (Pack of 4Pcs)

• ✔️️Dual ball bearings 4020 Fan - High Speed version
• ✔️High quality Dual ball bearings, More stable and Long life, suitable for continuous work. Use time can 24 hours / day. The life expectancy is about 60,000 hours. No maintenance required. But Lubricating oil can further reduce noise.
• ✔️️Rated voltage: DC 5V
• ✔️️Size: 40x40x20mm
• ✔️️️Made by WINSINN

Upgrade Your Cooling System with WINSINN 40mm 5V Dual Ball Bearing Fans Keep your devices running smoothly with this 4-pack of high-performance 40mm 5V fans. Designed for 3D printers, DVRs, and small electronics, these fans provide reliable cooling in compact spaces. The 30cm cable with XH2.54-2PIN connector allows for flexible installation, while the brushless motor ensures consistent performance without frequent maintenance. Why Choose These Fans? Dual Ball Bearing Technology: Offers superior durability and maintenance-free operation, ideal for continuous use. Optimized Airflow: Delivers 7.96 CFM at 7000RPM (±5%) for efficient heat dissipation. Quiet Operation: At just 27dBA, these fans maintain a peaceful environment—perfect for home or office use. Extended Durability: Built to last up to 50,000 hours, supporting 24/7 operation for long-term reliability. Certified Quality & Universal Compatibility CE, FCC, and ROHS certifications ensure safety and environmental compliance. The 5V DC input is compatible with a wide range of devices, making these fans a versatile choice for various applications. Package Includes & Usage Tips Each order contains four 40x20mm fans for multiple replacements or setups. For optimal performance: Confirm your device’s voltage matches the 5V rating. Ensure unobstructed airflow during installation. Clean dust periodically to maintain efficiency. Whether you’re upgrading a 3D printer or cooling small electronics, these fans deliver a balance of efficiency, quietness, and durability at an affordable price.