The Samsung 16GB 2Rx4 PC4-2133P-RA0-10-DC0 M393A2G40DB0-CPB is a high-quality DDR4 SDRAM memory module designed for desktop computers. With a total capacity of 16GB and a bus speed of PC4-17000 (DDR4-2133), this unit offers fast and reliable performance. It features ECC memory, which helps ensure data integrity and accuracy. This product is backed by a lifetime manufacturer warranty, making it a dependable choice for enhancing the speed and efficiency of your computer system.