Features • Superior Heat Dissipation: This Aluminum Alloy Cooling Case effectively prevents overheating, ensuring optimal performance for your Raspberry Pi 4 B model • Integrated Cooling Fan: Equipped with a powerful fan, this enclosure enhances heat dissipation for prolonged use and prevents thermal throttling during intensive tasks • Precise Compatibility Design: All ports and slots are perfectly aligned, providing seamless access to your Raspberry Pi 4 B, enhancing functionality and user experience • Durable Aluminum Construction: Crafted from high-quality aluminum alloy, this protective box offers excellent wear resistance and durability, ensuring long-lasting use • Open Design for Signal Integrity: The innovative design maintains Wi-Fi signal strength, allowing uninterrupted connectivity while protecting your microcomputer from heat Features: 1、This heat dissipation shell kit is used to prevent the motherboard from overheating, suitable for Raspberry Pi 4 B model. 2、Equipped with a cooling fan set, which can be used with the shell to make heat dissipation more efficient. 3、All ports and slots of the cooling shell can be ly matched for Raspberry Pi 4 B, which is highly practical. 4、Made of aluminum alloy, has good wear resistance and is not easy to and deform after long term use. 5、The open design can ensure that the CNC case does not affect the WIFI signal, and does not affect the use of the motherboard. Specification: Item Type: Aluminum Alloy Cooling Case Material: Aluminum alloy Exterior Treatment: Anodic oxidation Compatible: For Raspberry Pi 4 B Model Package List: 1 x Shell Upper Cover 1 x Shell Lower Cover 1 x Fan Set 4 x Thermal Silicon 1 x Hex Wrench 12 x Screws Package List 1 x Shell Upper Cover 1 x Shell Lower Cover 1 x Fan Set 4 x Thermal Silicon 1 x Hex Wrench 12 x Screws