Crucial 8GB Memory Module Kit (4GBx2) DDR3 PC3-12800 ECC Unbuffered NON-1.35V (Personal Computers)
I have a ThinkPad Edge 15 ", he had 4GB of RAM, I wanted a little boost, just go on to see what Crucial.fr good bars to choose PC. 8GB today, I was not worrying about ongoing software and perfs.