Features: Unique open shell cover for OrangePi 3B development board with cooling fan. Clear acrylic material lets you see the technology inside, with easy access to all ports. The transparent acrylic provides a clear view of your OrangePI 3B, allowing you to visually inspect the board and its components without opening the case. This helps monitor the board's status or verify connections. The acrylic shell provides reliable protection against dust, debris, accidental collisions, and minor impacts. It helps protect the circuit board from physical damage. It holds the board securely in place and provides easy access to various interfaces and functions. Specifications: Material: Acrylic Case Color: Clear For OrangePi 3B Size: approx. 10x7.1x4cm/3.94x2.8x1.57in Note: Due to lighting effects and shooting angles, there may be some tolerance in the product, please understand. Please allow 0-1cm error due to manual measurement. Package Includes: 1 pc x Case 1 pc x Cooling Fan 3 pcs x Heatsinks 1PC x 256GB eMMC Module (including OrangePi)