The EBM-PAPST 405F is a high-quality DC fan that is perfect for various cooling applications. With its compact size of 40 x 40 x 10mm, this axial fan is easy to install and fits effortlessly in tight spaces. Powered by a 5V voltage range (operational at 4.5V to 5.5V), this fan provides excellent performance and efficiency. It features a robust Sintec-Sleeve bearing system that ensures smooth operation, minimal noise, and long-lasting durability.Despite its small size, the EBM-PAPST 405F offers an impressive airflow of 4.7 cubic feet per minute (CFM), effectively cooling your electronic components. Additionally, it operates at a quiet 22.1 decibels (dB), allowing for noise-sensitive environments.Whether used in computer cabinets, audio equipment, or other electronic devices, the EBM-PAPST 405F delivers exceptional cooling performance while maintaining a compact design. Trust in the reliability and quality of EBM-PAPST for your cooling needs.