The Samsung 8GB 1Rx8 PC4-2666V-SA1-11 M471A1K43CB1-CTD Laptop Memory is a high-quality DDR4 SDRAM memory module designed for laptops. With a total capacity of 8GB and a bus speed of PC4-21300 (DDR4-2666), this memory module provides fast and reliable performance for your computing needs. The compact SO-DIMM form factor makes it easy to install in laptops, and the single module design ensures a straightforward upgrade process. Manufactured in China by Samsung, a trusted brand in computer components, this memory module is a dependable choice for improving your laptop's performance.