A Mini PC is a fully integrated, compact computer system designed for simplicity and space efficiency. These devices come with all essential components like CPU, memory, storage, and usually integrated graphics, packed into a small form factor. They are ready to use right out of the box, making them ideal for users who prioritize convenience and ease of setup.

On the other hand, Mini ITX refers to a motherboard form factor measuring 170mm x 170mm. It’s the smallest standard motherboard size and serves as the foundation for building custom compact PCs. Mini ITX motherboards support various CPUs and offer limited expansion slots, providing a balance between compactness and customization.