The Samsung 4GB 1Rx8 PC3L-12800S DDR3L SODIMM Laptop RAM M471B5173EB0-YK0 is a high-quality memory module designed for laptops. With a total capacity of 4GB and a bus speed of PC3-12800 (DDR3-1600), this RAM offers fast and efficient performance for your computing needs. The SO-DIMM form factor and 204 pins make it compatible with a wide range of laptops, while the Samsung brand ensures reliability and quality.