The Crucial CT8G4DFS8266 8GB DDR4 2666MHz PC4-21300 UDIMM Desktop RAM CL19 is a high-quality RAM module designed for desktop computers. With a total capacity of 8GB and a bus speed of PC4-21300 (DDR4-2666), this DDR4 SDRAM module offers fast and efficient performance for your computing needs. The unbuffered and non-ECC features make it ideal for everyday use, while the Crucial brand ensures reliability and stability. With its sleek UDIMM form factor and 288 pins, this RAM module is a dependable choice for enhancing your computer's memory capacity.