Specification: Origin: Mainland China Shell material: ABS Size: 91x61x34mm/3.58x2.4x1.34inch PWM cooling fan Fan size: 40x40x10mm/1.57x1.57x0.39inch Interface type: SH1.0-4P Rated voltage: DC 5V Number of revolutions: 5000±10%rpm Air volume: 4.8CFM Noise: 21dBA Cord length: 5cm Control: PWM Rated current: 0.1A Max Line sequence: red+, blue PWM, black-, yellow FG Wind pressure: 2.1mmH20 Operating temperature: -10°C~+80°C Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. Included: 1 x Case for Raspberry Pi 5 Corrosion Resistance: The case is engineered with corrosion-resistant properties, making it suitable for a wide range of applications, be it indoor or outdoor. This feature ensures that the Protective Case maintains its integrity and appearance over time, prolonging its lifespan and offering long-lasting protection for Raspberry Pi 5 mainboard. Customized Design: The protective case is meticulously tailored to perfectly fit the dimensions and interface positions for Raspberry Pi 5 5B mainboard. This not only ensures convenient installation and easy access to ports and connectors but also enhances the overall aesthetic appeal, providing a sleek and professional look for Raspberry Pi setup. Electromagnetic Radiation Performance: The protective case box is designed with excellent electromagnetic radiation performance in mind. It minimizes external interference, shielding for Raspberry Pi 5 5B mainboard from electromagnetic signals, and creating a stable and reliable working environment, reducing the risk of data corruption or system instability. Efficient Heat Dissipation: The ABS shell offers superior heat dissipation capabilities. It effectively manages the heat generated for Raspberry Pi 5 5B mainboard, preventing overheating and ensuring optimal performance even during intensive tasks. Durability and Strength: The silver shadow case is constructed with high-quality materials, ensuring exceptional durability and resistance to impact. It provides reliable protection against external shocks, compression, and accidental collisions, safeguarding for Raspberry Pi 5 mainboard from damage.