Features: Suitable for Orange pi Zero3 Development Board Acrylic Enclosure Box; All ports and slot are accurate opening; Case Size:Approx.67x61x38mm/2.64x2.4x1.5in Easy and convenient installation; Made from acrylic material, durable for use. Specifications: Material:Acrylic Color:Clear Case Size:Approx.67x61x38mm/2.64x2.4x1.5in Option Type:1xCase;1x Case with Fan;1x Case with Fan and Heat Sink; Note: Please allow 1-2cm errors due to manual measurement,please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: Package A: 1x Outer Case Package B: 1x Outer Case 1xCooling Fan Package C: 1x Outer Case 1xCooling Fan 1xHeat Sink