The Corsair Value Select 8GB DDR4 Memory module (CMV8GX4M1A2133C15) is a high-quality RAM upgrade for your computer. With a total capacity of 8GB split into two 8GB modules, it offers fast performance at a PC4-21300 (DDR4-2666) bus speed. This memory module is perfect for upgrading your system's memory capacity, ensuring smooth operation for various tasks. The UDIMM (Unbuffered) feature provides efficient data transfer, making it a reliable choice for enhancing your computer's overall performance.