If I had a choice, I would not like to buy those original computer memory modules as not only are they expensive as compared to the generic brands, but you will even have problems from time to time of looking for a real one and even at times, they are marked up so high just because there are few stocks of it available anywhere. It was an experience I abhor like one time I was looking for a certain model of Mac memory and was disappointed that even the known stores in town did not carry them or mostly were out of stock! Its quite funny that they have an abundant supply of other module brands like Dell memory, Kingston and so many more, but not the ones I really need. That is why when I found one in www.memoryupgrade.com , I knew I should keep this site bookmarked as they are really reliable for these things.