Of the two supplied memory chips unfortunately worked only one. When installing the second, the PC could no longer start. One reason could be the poor packaging, ie the bars were not packed separately, but both together unprotected in a bubble mailer. The purchase price for the defective block has indeed returned quickly, but not quite half (29,99), as well as the return costs have not been included. The memory has thus gekostet.Insgesamt me 37.91 I'm not satisfied with this dealer.