1. Exclusive customization, for RDK X5 2. High-strength aluminum alloy, protection and lightness 3. Built-in silent fan, efficient heat dissipation to performance 4. Precise interface openings, quick connect connect peripherals This aluminum alloy protective case is specially designed for D-Robotics RDK X5 development board, combining durability, performance and excellent heat dissipation performance. Built-in silent and efficient cooling fan, and with the ventilation design, it can effectively reduce the temperature of the development board during long-term high-load operation and system stability. A series of interfaces are reserved around the casel for users to quickly access various peripherals such as USB, -compatible, MIPI cameras, etc. Color: Grey Material: Aluminum Alloy Package Contents: 1 * Casing 1 * Fan 1 * Screw Pack Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.