The LON-15107 is an enclosure for the Raspberry Pi 4 B model with either 4G or 8G of RAM. The enclosure is made by LONTEN TECHNOLOGY and features two USB 3.0 ports, an HDMI port, an Ethernet port, as well as a MicroSD slot allowing you to connect a variety of components to your Raspberry Pi 4 B. The enclosure also has a built-in cooling fan, and is designed to provide easy access to all Raspberry Pi ports and components. Additionally, the enclosure is designed to offer a secure and dust-free environment for your Raspberry Pi.