Feature: 1. Thermal Column Design: The top cover of this passive cooling enclosure is designed with a thermal column to achieve overall heat dissipation through thermal adhesive and chip bonding, allowing for more stable performance and fast thermal conductivity. 2. Sturdy and Durable: This passive cooling case is very sturdy and durable, with a certain degree of wear resistance and corrosion resistance to support long term use under normal operation. 3. Thermal Protection: The most important feature of this heat cooling enclosure is passive heat dissipation, which means that after installation you no longer have to worry about actively doing thermal protection for your instrument. 4. Aluminum Material: This passive cooling case is made of aluminum alloy, this material has good play and is more beautiful in design, which can effectively achieve your use. 5. Perfect Match: During the design process, we were very careful to make the size of your instrument match perfectly with the size and mounting holes of our heat sink enclosure with small size and beautiful appearance. Specification: Item Type: Passive Cooling Case Material: Aluminum Alloy Applicable Models: For Raspberry Pi Zero 2W, for Raspberry Pi Zero. Package List: 3 x Housing1 x Pin Header8 x Screw8 x Nut4 x Plastic Ring2 x Sticker