How to make sure that a memory card is compatible to my mac? I want to upgrade my RAM from 4g to 8g.

my mac specs are:





I need 2 4g memory cards, and this is a specific card I saw in a store that should be working, but no one gives a guarantee it will work on mac...they say it works on laptops, but they can't guarantee its working for mac...

This is the card model: G.Skill 1x4GB DDR3 1600Mhz SODIMM
I would use something like Crucial's online configurator rather than the vague specs in a shop window.

That way you have a guarantee it will work.

Kingston &amp; Corsair have the same kind of thing, but Crucial gives you the option of downloading an app to do all the work for you.