Features: Protect and cool your Computer Board with this ABS case featuring a built in fan and heatsink. Made from durable ABS material, this case is designed to perfectly matchthe ports and slots forLibre Computer Board, ensuring easy accessand compatibility. for RPi enthusiasts and DIY projects, this case is compatible for RPi 3B 3B+ Computer Board. This case provides the perfect solution for protecting and cooling your device. Easy installation and reserve GPIO cable holes and card slots. Specifications: Type:Plastic Housing with Fan Model: for RPi 3B+/3B Mainboard Case Enclosure Size: approx 89x30x65cm/3.5x0.12x2.56in Color: White/Black/Gray Package Includes: 1PCx Case with Cooling Fan note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!