This new aluminum alloy metal casing is specially designed for Raspberry Pi 3rd generation and Raspberry Pi 2nd generation/B+, it isproduced by the original factory with a simple design. lt does not affect the Wlfl signal. The side slots can be used to install the GP10 cableIt has a fashionable appearance, is simple and elegant, and is very beautiful and grand. lt has good heat dissipation performance, is sturdyand durable, is easy to install, and provides excellent protection for your Raspberry Pi.