Excerpt: Crucial is about the only company I trust for Mac memory and again their product works flawlessly. Also B&H is just a great place to buy from as well. They usually have the best prices around.
Summary: Put this in a Gateway laptop from another vendor, and it worked just fine. No compatability issues. Just make sure you have matched speed with whatever you have and all will be recognized, otherwise it will go to the slowest speed of the 2. Other than that, had no issues.