QNAP 320W FSP Power Supply - PWR-PSU-320W-FS01

QNAP PWR-PSU-320W-FS01 320W FSP Replacement Power Supply

Overview

The PWR-PSU-320W-FS01 is a 320W FSP-built replacement power supply for select QNAP rack-mount NAS enclosures. When a PSU fails in a production storage array, downtime is measured in minutes — having a genuine drop-in replacement on hand keeps your QNAP NAS back online without waiting on a depot repair cycle. At 320W, this unit delivers the headroom those enclosures need to run fully-populated drive bays under sustained read/write loads.

Compatibility

This power supply is a direct fit for the following QNAP rack-mount NAS models:

• TS-977XU-RP — 9-bay rackmount with redundant PSU bays
• TVS-972XU-RP — 9-bay 10GbE NAS with redundant power architecture
• TS-983XU-RP — 9-bay hybrid NAS with NVMe + SATA bays and redundant PSU support

All three enclosures use a redundant PSU design, meaning the PWR-PSU-320W-FS01 slots in as either the primary or secondary unit — a critical detail if you're hot-swapping a failed PSU in a live system. Do not install in QNAP NAS models outside this list; PSU form factors and wiring pinouts are enclosure-specific.