The M471B5173EB0-YK0 Genuine Samsung Memory 4GB 1Rx8 PC3L-12800S-11-13-B4 (CA610) is a high-quality memory module designed for computer systems. With a total capacity of 4GB and ECC memory features, this DDR4 memory module from Samsung is reliable and efficient. The SO-DIMM form factor makes it easy to install, and the PC3-12800 DDR3-1600 bus speed ensures seamless performance. This memory module is a genuine product from Samsung, offering a manufacturer warranty and made in the United States for quality assurance.