The Dell Optiplex 3020M Micro is a compact desktop computer with a Micro Form Factor (MFF) design, making it suitable for small spaces. It features 4GB of RAM, a fast 3.0GHz processor speed, and does not come with a hard drive or operating system. This allows users to customize the system with their own storage and OS options, providing flexibility and cost savings. Ideal for those looking to build a custom desktop solution with a reliable Dell brand name.