The Crucial 4GB DDR4-2133 UDIMM CT4G4DFS8213 Memory RAM is a high-quality memory module designed for desktop computers. With a total capacity of 4GB and a bus speed of PC4-17000 (DDR4-2133), it offers fast and efficient performance for a variety of computing tasks. The UDIMM form factor and DDR4 SDRAM type ensure compatibility with a wide range of systems, while the ECC memory feature adds error correction for enhanced reliability. Whether you're a gamer, content creator, or simply looking to upgrade your system, this memory module from Crucial is a solid choice for boosting your computer's performance.