Original Mac memory sale in memoryupgrade.pro

Eversince I learned all about upgrading and troubleshooting, I have experimented with my laptop and my current project with that is upgrading the laptop memory and I know this might be tedious as I need to be real specific and know which ones really work for my laptop as it might waste time and money by buying the wrong module for it. I caught wind of this site in memoryupgrade.pro where they sell Dell memory and even Mac memory and i want to really buy those as I have both a dell and mac book at home to try it on. I think it wont be a waste of my money since I can always sell to my friends who might be needing them in case also, but for now, I am quite excited to try out these memory modules and see what they can do for my PCs at home.