What is the difference between the RAM labeled '1Rx8 PC3L-12800S-11-13-B4' (inside the laptop) and '2Rx8 PC3-12800S-11-11-F3' (planning to buy)? - Quora
Micron chipset 4GB 1RX8 2Rx8 PC3L 12800S DDR3 1600Mhz 4gb módulo de memoria para portátil SODIMM RAM _ - AliExpress Mobile