This Apple Mac Mini computer, model A1283, offers a 2.26 GHz processor speed, 4GB RAM, and a 160 GB HDD for storage. It runs on MacOS, but has not been tested. This desktop computer is perfect for anyone looking for an Apple product with reliable features. It is the ideal choice for those in need of a compact and efficient computer. This used computer has been well-maintained and is ready for its new owner to enjoy.