1、Suitable for Raspberry Pi 3 Model B‑type substrate aluminum alloy housing, equipped with perfectly matched holes. 2、Good heat dissipation performance helps shell sturdy and durable, separable upper and lower structure, easy to install. 3、With long service life, case for Raspberry Pi is not easy to damage, you can use for a long time. 4、Aluminum alloy box has an exhaust hole surface. With good heat dissipation effect, such box 30% thicker than ordinary aluminum alloy plate. 5、Meanwhile, such metal case enclosure keeps long service life, not easy to damage so that you can use it with confidence. 2 x Shell2 x Accessory1 x Screwdriver10 x Screw Item Type: Metal case enclosureMaterial: Aluminum alloyColor: SilverComposition: Upper shell + lower shell + assembly screwsFeatures: This aluminum alloy box has a vent surface. Good heat dissipation effect, 30% thicker than ordinary aluminum alloy plate.Diffusion Coefficient: This is an aluminum alloy shell specially designed for Raspberry Pi3 B + type (for B Plus) / for Pi3 B type.