QNAP PWR-PSU-550W-DT01 QNAP 550W Power Supply Unit

QNAP PWR-PSU-550W-DT01 550W Desktop Power Supply Unit

Overview

The PWR-PSU-550W-DT01 is a 550W replacement power supply unit sourced from Delta, designed as a direct drop-in for compatible QNAP desktop NAS enclosures. If your existing PSU has failed or you are pre-staging a spare for a production NAS that cannot afford unplanned downtime, this unit restores full power delivery at the rated wattage — no improvised third-party fitment, no guesswork on connector pinout.

Compatibility

This PSU is designed for specific QNAP desktop NAS enclosures that ship with or specify the PWR-PSU-550W-DT01 as the rated power supply. QNAP also offers the QNAP NAS and storage line with an 800W variant (PWR-PSU-800W-DT01) for higher-capacity enclosures — verify your enclosure's OEM PSU label before ordering to confirm the correct wattage and form factor. Do not substitute the 800W unit where the 550W is specified; connector layout and power sequencing may differ. Cross-reference your enclosure's service documentation or the label on the failed unit to confirm PWR-PSU-550W-DT01 is the correct replacement for your NAS storage system.

Installation Notes

Replacement PSU installation on QNAP desktop enclosures typically requires full system power-down and enclosure disassembly. Consult your enclosure's hardware maintenance guide for drive bay removal sequence and PSU bracket retention before starting. Retain the original mounting hardware — this unit ships as the PSU only. Having a UPS or power protection device inline after reinstallation is standard practice for any NAS in a production environment.