How to know which RAM to get for my Macbook

Hi, I want to upgrade my Macbook to 4GB of ram (it currently has 2GB). My Macbook is the 2.4Ghz Core 2 Duo non-unibody model. I purchased it in June/July of 2008.

Would this RAM work? Do Macbook RAM slots allow more 1GB for each one?

Newegg.com - CORSAIR 2GB 200-Pin DDR2 SO-DIMM DDR2 667 (PC2 5300) Laptop Memory Model VS2GSDS667D2 - Laptop Memory

And I know Corsair is a reputable company, but is this decent quality ram?

Thanks in advance!

If they don't provide quality products why would they be a reputable company?

Haha maybe it has bad specs (long latency, perhaps there are better specs for the same price). I don't know. Just want to make sure.

I get all of my memory from Crucial.com and have never had a problem. Their memory selector tool will tell you exactly what you need.

Corsair is rebranded memory, much of which is junk.

Thank you. I used their scanner thing. It was slightly off (It said I had a black macbook) but I think everything else was the right specs. I trust that they are correct.