Replacement 550W Power Supply PS-2521-1D for PE1850 Server — 0WJ829 / 0UG634

Direct-fit replacement power supply for PE1850 servers. Provides 550W output and is model PS-2521-1D. Cross-referenced with OEM part numbers 0WJ829 and 0UG634. Suitable as a spare or repair unit to restore original power capability in PE1850 systems.