Because you don't list the model, so we don't know. But keep in mind you will need the MAC memory for your Macbook, you can't buy the PC memory for the apple computer.
Also you can use the Crucial Advisor tool to find your memory too. http/www.crucial.com/
You mean the model for the device? It's a Macbook Pro 7.1. Intel Core 2 duo 2.4 ghz...
The ram is made for Mac, and says that it's compatible with my model... but i am not sure about the brand.. some mixed reviews on Amazon... i mean.. 4.5 stars, yes.. but the people that put low rating list some really worrying defects..