Lenovo ThinkSystem ST550 Rear Fan Module for Redundant Cooling (7XH7A05900)

One fan dies at 2am and your ST550 starts thermal-throttling while you're asleep. This rear fan module gives you a redundant cooling path so a single point of failure doesn't take the whole box offline. It slots into the ThinkSystem ST550 rear fan bay, matches the original airflow profile, and keeps your rack temps where they should be. Genuine Lenovo part number 7XH7A05900 — no third-party mystery units. Add to cart and it's on its way to your server room

• Genuine Lenovo rear fan module for ThinkSystem ST550 (P/N 7XH7A05900)
• Provides redundant cooling so a single fan failure won't throttle or crash the server
• Direct replacement for the original ST550 rear fan assembly
• Maintains OEM airflow profile and thermal envelope for the ST550 chassis