The 4X776 Dell CPU case fan with shroud is a dedicated replacement part designed for Dell Optiplex GX260, GX270, and Dimension 8300 and 8400 workstations. This fan provides reliable airflow to the processor area, helping maintain optimal operating temperatures. The integrated shroud directs air efficiently into the case while reducing noise and protecting the fan from dust and debris. It is engineered to fit the original mounting points and electrical connections of the listed Dell models, ensuring a straightforward installation that restores the system’s cooling performance. This component is a compatible, OEM-quality part for maintaining system reliability.