Timetec 16GB KIT(2x8GB) Compatible for Apple DDR3L 1600MHz for Mac Book Pro(Early/Late 2011,Mid 2012), iMac(Mid 2011,Late 2012,Early/Late 2013,Late 2014,Mid 2015), Mac Mini(Mid 2011,Late 2012) MAC RAM

Worked great in MacBook Pro A1278 2011

you can do it by watching youtube even you are not familiar with machine!

Instaladas en macbook pro mid 2012, soporta los 16 Gb sin problema, reconocimiento inmediato, se nota el desempeño sin actualizar aun ssd.

My Macbook is about 8 years old and is starting to act accordingly. I got this per the recommendation of a sales associate from the Apple store and have noticed a drastic difference (positively) in the speed of my laptop. Very happy with my purchase!

Se las coloque a mi iMac late 2011 funcionaron sin problema alguno

Has speed up my 2012 IMac. Very easy to install. Just followed the directions from Apple. I still have room for another up grade and I would not hesitate to buy this again. The price is great as well. Item showed up well packed with all the information the buyer needs.

So easy to install... turn off pc. Open flap, plug in, close flap, turn on pc... and you’re done.

I have a mid 2012 MacBook Pro and its blazing fast with my ssd. I test ran it for 8 hrs for 5 days straight so far no problems.

Me funcionaron perfecto, no encontré imperfectos en su empaque, hasta el momento no me presentan problemas en su funcionalidad, no hubo problema en el momento de ingresarlas a mi MacBook, recomendada.

I upgraded my mid-2012 13 MacBook Pro from the factory installed 4gb to Timetec 16GB Kit (2x8GB) DDR3L 1600MHz PC3L-12800 SODIMM. First, the install was a breeze. IFixit has easy to follow step by step instructions. It took me all of 10 minutes. Second, my tired old MacBook Pro now runs far faster than it ever did — even when new. Boots instantly from sleep mode and nearly as fast from powered down. I even upgraded from OS 10.8.5 to 10.13.6. Something I never would have attempted with 4GB memory. All programs that had stopped working under old OS or were no longer supported — like Kindle and Google are now up-to-date and run flawlessly. This is the best computing investment Ive ever made. Wish I had done it years ago!