Product description Mini Dual Gigabit Ethernet Base Board/Mini-Computer Designed For Raspberry Pi Compute Module 4 Magnetic Design Magnetic Removable Top With The Location Columns, Easy To Fix And Better Protection For The GPIO Pins Heat Dissipation Design Metal Case For Large Area Thermal Conductivity And Heat Dissipation Built-In Speed-Adjustable Fan With Cooling Fins, More Efficient Application Example Suitable For Raspberry Pi Or Other Industrial Occasions With Special Function Requirements