The height of the AsRock A520M (AM4, AMD A520, Mini ITX) motherboard is typically that of a Mini ITX format, which is 170 mm x 170 mm. However, for the exact height dimensions, it's important to check the manufacturer's technical specifications, as some motherboards may have components that slightly exceed the standard format. Generally, Mini ITX motherboards are designed to fit into smaller cases, but it is always advisable to check the precise dimensions to ensure compatibility with your project.