Description: brand new and high quality Features: With switch button and high aluminum material, it is lightweight and durable. All of its ports and slots can perfectly match with Pi 4 Model and open for case design will not affect wifi signal any more. Ultra-thin design allows fast heat dissipation and quiet cooling fan can help get rid of the fan noisy. It is easy to install and update thermal tapes make heat conduction effect good. Dual quiet cooling fan is low power consumption but provides the best cooling effect for your Raspberry Pi. Specifications: Matetial : Metal Net Weight : 246g approx Compatible With : 4B or 3Band or 3B Size: 92x62x32mm or 3.26x2.44x1.26 inches Note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 x Aluminum Alloy for Case 1 x Dual Fan Module 1 x Screws Tool Set 1 x Heat Sinks Set ( not include Raspberry Pi )