495W DELL redundant hot-swap power supply unit for enterprise server platforms. Compatible with: R630, R730, R730xd. Designed for 24/7 mission-critical operation with high efficiency and full redundancy support. Hot-swap capability: replace the PSU without powering off the server, ensuring zero downtime during maintenance. Features comprehensive protection: over-voltage, over-current, over-temperature, and short-circuit protection. Redundant PSU configuration (1+1) provides failover if one PSU fails, protecting against unplanned outages. Please verify the part number and server model compatibility before purchasing.