Features: Brand new and high quality High-performances computing: It supports the computing module of raspberry pie CM3/3+, provides powerful computing power and processing speed, and meets the needs of users for high-performances computing. Mini size: Compact design, small and portable, easy to carry and install, suitable for various space-limited application scenarios. Multifunctional expansion: Provide rich interfaces and expansion slots, which can connect various external devices and sensors to meet different application requirements. High compatibility: Suitable for RPI CM3/3+, and can be used without additional hardware or software modification. Reliability and stability: Made from high-quality materials and sophisticated technology, it has good heat dissipation and electrical performances, ensuring the stable operation of the equipment for a long time. Specifications: Material:Metal Length:Approx.144mm/5.67inch Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Set POE Box