Material: Aluminum alloy material can reduce the temperature of your Orange Pi during use to a certain extent, and the heat dissipation function is more effective. With Silicone Pad: Comes with thermally conductive silicone for efficient heat dissipation. Heat Dissipation Groove: The upper cover of the case is designed with a heat dissipation groove, which increases the heat dissipation area and better protects the motherboard (excluding Orange Pi motherboard!). Simple Black: The simple black design perfectly matches the interface of the corresponding motherboard. Easy to Install: Reserve the hole for the antenna, the opening is precise, one-to-one correspondence, and it fits the development board completely, which is easy to install. Item Type: Heatsink for Orange Pi Zero 2 Product Material: Aluminum Alloy Product Size: Approx. 62 x 55 x 15 mm / 2.4 x 2.2 x 0.6 inches (Size after installing the motherboard) Color: Black Applicable Model: for Orange Pi Zero 2 (Excluding Orange Pi Zero 2 motherboard)