I never quite understood the importance of having a big ram memory in my computer until the day when my computer was already running so slow and hanged up most of the time due to so many programs running simultaneously in there. I had actually 2 computers and 1 laptop at home and I figured out I wanted to upgrade them all if I wanted them to perform better. The computer at home was one Dell Optio and the laptop a Macbook pro so I figured already that I needed to upgrade them with Apple memory for the mac and Dell memory for the optio. I found the memory module that I needed in memoryupgrade.pro and was quite surprised that not only were the prices cheap but its availability was also good that I did not waste time in procuring such.