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.You may also like M9138-E1024LAF / M9138 PCI-EX16 Multi-Screen Splicing Graphics Card — Triple Display (3 Mini Display Port) — for 1pcs.