Memory Upgrade: Planning to Use Different RAM Model I'm considering upgrading to a total of 16GB RAM. Currently, I have 4GB.

MacBook Pro: 13-inch, Late 2011
Memory  4 GB 1333 MHz DDR3


The problem: it appears the local resellers no longer have such RAM model. My question is, will the new PC3-12800 DDR3 1600 MHz type RAM, designed for the Mid-2012 model, work on the Late 2011 model?

Any apple-endorsed reference would be good. Thanks.
As stated in Apple's technical specifications your machine officially only supports 8GB of memory total.

That said Other World Computing runs a massive on-site lab and has confirmed that the Late 2011 MacBook Pro can support 16GB without any stability issues. The memory does need to be PC3-10600 DDR3 1333 MHz however. You can find that memory available from Other World Computing as well as from other online retailers.

Do keep in mind however that, since it's an unsupported configuration, Apple won't support your machine with those memory modules installed (should you ever need to take it to the Apple store).