550W Switching Power Supply EFRP-553V3 / EFRP-553 — Replacement PSU for NF290D2 & NF5220

Replacement 550W switching power supply compatible with NF290D2 and NF5220 systems. This unit corresponds to models EFRP-553V3 and EFRP-553 and is intended as a direct swap for the original PSU. Ideal when you need to replace a failed or aging power module—please verify your device model (NF290D2 or NF5220) and original part number (EFRP-553V3 / EFRP-553) before purchase.