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Crucial. I am a total novice and installed memory in my white MacBook myself. Easy to pick the right product, instructions... All on the website.
 
They're all pretty much the same. Read the customer reviews on Newegg.

agreed, the most important thing in memory I look for is both sticks having the same latency, etc. as the ones you pulled out. As long as it is by a good manufacturer, no matter what that is to you, you are going to be fine.
 
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