The Samsung 4GB DDR3-1600 PC3-12800 1Rx8 SODIMM Laptop Memory RAM M471B5173DB0-YK0 is a high-quality memory module designed for laptops and notebooks. With a total capacity of 4GB and a frequency of 1600MHz, it provides fast and efficient performance. This non-ECC unbuffered RAM is manufactured by Samsung with a lifetime warranty, ensuring reliability and stability. The compact SO-DIMM form factor makes it easy to install and use, while the low voltage of 1.35V (DDR3L) ensures power efficiency. This memory module is a great choice for upgrading or replacing existing RAM in your laptop.