The Samsung 8GB 1RX8 PC4-2133P M471A1K43BB0-CPB laptop memory stick module is a high-quality DDR4 SDRAM memory module designed for use in laptops. With a total capacity of 8GB and a bus speed of PC4-17000 (DDR4-2133), this module provides fast and efficient performance for your computing needs. The module comes in a SO-DIMM form factor, making it compatible with a wide range of laptop models. Whether you are looking to upgrade your current memory capacity or simply need a reliable replacement, this Samsung memory stick module is a great choice.