Features: Metal box This box is made of good quality metal material, providing sturdy protections and effectively preventing for Banana PiR3 development board from external impact and damage. Accurate adaptation design: The enclosure size is precisely adapted for Banana PiR3 development board, ensuring a perfect fitwithout affecting the normal use of interfaces and slots. Optimize heat dissipation design: The metal enclosure has good heat dissipation performances, effectively reducing the temperature for Banana PiR3 development board during operation, improving stability and work efficiency. Complete interfaces access: The enclosure is reasonable, ensuring that all interfaces and expansion slots can be easily accessed, making it convenient for users to connect cablesand install modules. Durable and durable: Metal materials provide better durability, which can protect the for Banana PiR3 development board from scratches, dust, and other external factors for a long time. Specifications: for Banana PiR3 Metal Case Material: Metal Size：approx as Pitures Types：A: 1 Aluminum Casing 8 Wifi Antennas (without heatsinks） / B: 1 Aluminum Casing 6 Heatsinks 8 Wifi Antennas Package Includes: 1Set Metal Cover for Banana PiR3 note: Does Not include the for Banana PiR3 board 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 measurme