The Samsung 4GB DDR3-1333 PC3-10600 2Rx8 SODIMM Laptop Memory RAM M471B5273BH1-CH9 is a high-quality memory module designed for laptops and notebooks. With a total capacity of 4 GB and non-ECC unbuffered memory features, this RAM is reliable and efficient for everyday computing tasks. Manufactured by Samsung, a trusted brand in the industry, this DDR3 SDRAM module is compatible with a wide range of devices. Upgrade your laptop's memory capacity with this dependable and durable RAM module. Removed from an function laptop that was no longer in use. Tested-Working properly as designed. Grade B