Features: new and Unique open for shell for Orange Pi 4 Lts for shell, made of acrylic, you can clearly see the technology behind the machine. This fully vented for case with fan designed to keep your Pi 4 as cool as possible for optimal performance. Clear transparent for case with easy Installation insert PI into bottom part, connect fan and snap on top part Includes 1 preinstalled fan, easy acsses to all ports and maximum airflow The top acrylic plate can be opened upwards for more convenient use. Specifications: for Case Material: Acrylic for Case Color: Clear Fan Features:DC Brushless Fit for : for Orange Pi 4 Lts for Case Size: approx 96x71x35.5mm/3.78x2.79x1.40in Package Type: 1PC Acrylic for Case/ 1PC Acrylic for Case with Fan Note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment. Package includes: 1Set x Acrylic for Case