The Samsung Laptop SODIMM DDR4 8GB 1Rx8 PC4-2666V-SA1-11 M471A1K43CB1-CTD is a high-quality memory module designed for laptops. With a total capacity of 8GB and a bus speed of PC4-21300 (DDR4-2666), it offers fast and efficient performance for your computing needs. This single SO-DIMM module is easy to install and ensure compatibility with your device. Made by Samsung, a trusted brand in the industry, you can rely on this memory module to enhance your laptop's functionality and speed. Tested and working