ddr2_200pinI could say my laptop is old at 2 years already, though I did not want to dispose of it as it was still working fine, I decided it was at least time to upgrade it, especially the laptop memory , which was still at 512 MB, a far cry from the most recent 4 GB models.. I decided to go for maybe at least 2 GB if possible but problem was the shops I knew who sold these memory modules overpriced them and I was having hard time deciding if I should go upgrade my laptop or if it was worth it. Good thing I chanced upon www.memoryupgrade.pro and I realized their prices were lower and that they can give you a guarantee that it is working well. They even have a good selection of memory modules from Apple memory and so many more computer ram modules which are hard to find anywhere else for a good price.