Early 2009 - MacBook5,2
Compatible upgrades for: MB881LL/A - Early 2009 13-inch Macbook's (White).
Standard RAM: 2 GB
Maximum RAM: 6 GB*
Details: 2 GB of RAM is installed as two 1 GB modules, no slots free.
*Apple officially supports a maximum of 4 GB of RAM but third-parties have been able to upgrade the system to 6 GB of RAM using one 2 GB and one 4 GB memory module.
RAM Slots: 2