This is the full US retail version of Mac OS X Tiger version 10.4. The software is still brand new and factory sealed. There is a little denting & bending on the set box and other storage/handling wear on the packaging, though no really severe wear and nothing that should affect the contents. Please check the system requirements info shown on the box prior to purchasing as I will not be able to accept a return if the software has been opened and found not be compatible with your computer. Please ask if there are any questions.