For Orange Pi Zero 2 Aluminum Case Development Board Protection Cooling Shell Metal Protective Cooling Enclosure Features: Precisely crafted hole position easy to install The black aluminum alloy material can reduce the temperature of the orange pi board in use to a certain extent, and the heat dissipation function is stronger. Aluminum alloy passive heat dissipation works more efficiently and better protects the motherboard The black and simple design perfectly fits the interface of the corresponding motherboard. Specifications: Applicable model:FOR Orange Pi Zero 2 Note: Not Included Motherboard Colour:black Material:Aluminum alloy Size:62 x 55 x 15MM Package Includes: 1 x Aluminum Alloy Upper Cover 1 x Aluminum Alloy Lower Cover 1 x Screw Pack 3 x Thermal Pad Note: This product only has a heat dissipation shell and does not contain for Orange Pi motherboard. Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.