Replacement Power Supply 550W DPS-550LB E for NAS RN4220 Server

Power supply unit (model DPS-550LB E) supplying 550W, designed for use with NAS RN4220 servers. This replacement PSU brings restored power delivery to RN4220 systems and is suitable for replacing a failed or malfunctioning power module. Please verify compatibility with your specific RN4220 before purchase.