15GB, 91531U3 13A 14A 28A FA520N60 C,M,D,B DG13A; IBM 09N0851

This means the product was tested and repaired as required to meet the standards of the refurbisher, which may or may not be the original manufacturer. Any exceptions to the condition of the item outside the manufacturer’s information should be provided in the listing, up to and including warranty details.