The Samsung 8GB DDR4 2666 PC4-21300 1Rx8 SODIMM Laptop Memory RAM (M471A1K43CB1-CTD) is a high-quality memory module designed for laptops. With a total capacity of 8GB and a frequency of 2666MHz, it offers fast and reliable performance. This memory module is part of the DDR4 SDRAM type, features non-ECC unbuffered memory, and has a lifetime manufacturer warranty. The compact SO-DIMM form factor and a voltage of 1.2V make it easy to install and compatible with a wide range of devices. Ideal for upgrading or replacing existing memory modules in laptops for improved performance and efficiency.