Hello MacRumors Members, I am not really new to the MacWorld but I have not used my old Macbook (13" i7 MBP Early 2011) a lot because i was not really happy with it and kept my ASUS as well. But now i finally decided to completely migrate to Mac. Thats why my hardware experience and overall experience is not that high . I did some research over my question inside this board and via google, but i don't have a good answer / solution yet. Maybe some Pros of yours can help me. So I finally bought a MacBook Pro Mid 2012 i7 2.3 MD103A. The stock memory is 4GB, and not enough and now i would like to upgrade the memory to 16GB. But i dont know which one to buy. The memory i have chosen so far is: 1) Crucial - 16GB kit (8GBx2), 204-pin SODIMM, DDR3 PC3-12800 memory module http://www.crucial.com/store/mpartspecs.aspx?mtbpoid=B77BEA08A5CA7304 75 2) Corsair Mac Memory - CMSA16GX3M2A1600C11 - 16GB http://www.corsair.com/us/memory/ma...r3-sodimm-memory-kit-cmsa16gx3m2a1600c11.html 100 3) Corsair Venegance - CMSX16GX3M2A1600C10 - 16GB http://www.corsair.com/us/memory/la...p-memory-upgrade-kit-cmsx16gx3m2a1600c10.html 75 On Amazon a lot of users are happy with the Crucual Venegance, but some say they have errors. During my research i found somebody saying that the Venegance gets to hot and is not a good choice for MacBooks. Some others say that this is the best one could get, because its Timing is the best. The Crucial memory was highly recommended by some Macy friends of mines. Both are on the same price-level for me so i don't mind. The Corsair Mac Memory has the highest price tag, and i have not found a lot of reviews about it. I would be very happy if you could share your opinion about this.