Mid-2007 - MacBook2,1
Compatible upgrades for: MB061LL/A, MB062LL/A, MB063LL/A - Mid-2007 Macbook's (Black/White).
Standard RAM: 512 MB
Maximum RAM: 4 GB*
Details: 512 MB of RAM is installed as two 256 MB modules, no slots free.
*Apple officially supports 2 GB of RAM, but third-parties have been "unofficially" able to upgrade it to 3 GB or 4 GB of RAM (it can hold 4 GB but cannot fully utilize the memory beyond 3 GB due to the same limitation that impacts the "Late 2006" MacBook Pro line).
RAM Slots: 2