More information on Apple laptop memory upgrade:

If you are looking for a memory upgrade for your Apple MacBook Notebook 13.3" 2.1GHz 120GB (MB402LL/B) laptop you've come to the right place!

We, at MemoryC, supply Apple MacBook Notebook 13.3" 2.1GHz 120GB (MB402LL/B) laptop memory upgrades. Upgrading your Apple MacBook laptop memory will give you an additional performance boost and make memory intensive applications work smoother. Our recommendation is to add the largest memory upgrade to your laptop to achieve the best performance. Using our Apple MacBook laptop memory configurator to find the right type of laptop memory you need takes the stress out of this selection, as we only sell premium laptop memory upgrades.

All Apple MacBook Notebook 13.3" 2.1GHz 120GB (MB402LL/B) laptop memory is guaranteed compatible (pretested in your particular laptop system), covered by lifetime warranty and will improve the performance!