New Genuine 550W Hot-Swap Server Power Supply for Dell PowerEdge R320 R420 0RYMG6 RYMG6 D550E-S0 PSU

Aomoproing new genuine 550W hot-swap power supply is a direct OEM replacement for Dell PowerEdge R320 and R420 rack servers. It fully matches original part numbers 0RYMG6, RYMG6, D550E-S0, DPS-550MB A, with identical mechanical dimensions, connector layout, and electrical specifications for seamless integration.

Built for enterprise-level reliability, this PSU delivers a steady 550W output (12V/45.8A) to power multi-core CPUs, high-density RAM, RAID controllers, and expansion cards under full server loads. Its hot-swappable architecture enables safe installation or replacement while the server runs, critical for maintaining uninterrupted service in data centers.

Certified 80 Plus Platinum, the unit operates at over 92% efficiency, cutting power consumption and cooling demands. The 100240V auto-ranging input supports global deployment with active PFC to minimize harmonic distortion.

Constructed with premium server-grade components, it includes full protections: over-voltage (OVP), over-current (OCP), over-temperature (OTP), and short-circuit (SCP) to safeguard critical hardware. This genuine, high-quality PSU is the ideal choice for server maintenance, repair, or redundant power upgrades, ensuring long-term stability for your Dell PowerEdge systems.