I have dealt with Data Memory, Inc. for years and have always been completely satisfied. DataMem has gone more than the extra mile to make my purchases work for me. On one purchase, DataMem sent me three sets of RAM chips because the first two sets were too tall to fit in the Dell laptop that I was working on. It seems that Dell used different height chips in the same model laptop according to the year of manufacture. I was only charged the shipping fee for the first set of chips. Contact them online at http://www.datamem.com or phone 1-800-662-7466. Their web site shows free shipping if the order is placed online. Otherwise, it is US $9.00 for second day delivery. Also, all their chips are guaranteed.