An optical module is a converter used in an optical communication device to convert between optical signals and electric signals. Being a core module in the optical communication device, it directly determines the network speed. This product adopts an aluminum alloy shell. Its head cover has a heat dissipation gear, which adds the heat dissipation and conduction areas, maximizes air circulation, and improves cooling efficiency. Its overall design uses a simple geometry design style. The utilization of a heat dissipation gear and a bottom cover creates a unique sense of layering. And the match of matte silver and black reflects the high reliability of the product.