The RM4HX Dell 12V DC 1.5A 4‑Wire Cooling Fan is a high‑performance replacement part designed for Dell PowerEdge R820 servers. This fan operates on a 12‑volt direct current supply and draws 1.5 amperes, ensuring reliable airflow while maintaining power efficiency. The 4‑wire configuration supports standard fan control and monitoring, allowing seamless integration with existing server fan management systems. Built to Dell’s specifications, the RM4HX delivers consistent cooling performance in a compact form factor, making it an ideal upgrade or replacement for maintaining optimal operating temperatures in PowerEdge R820 environments.