QNAP SP-2BAY-ADAPTOR-90W 90W Power Adapter for 2-Bay NAS and NVR
Overview
The SP-2BAY-ADAPTOR-90W is a 90W replacement power adapter purpose-built for QNAP 2-bay NAS and NVR enclosures. At 90W, it delivers enough headroom to sustain two spinning drives under simultaneous read/write load — a failure point when generic adapters are substituted and run near their ceiling. When an original adapter fails mid-deployment, this is the direct replacement that keeps the unit running without guesswork on voltage or connector fit.
Compatibility
Verified compatible with the following QNAP 2-bay models: QNAP NAS enclosures including the TS-451, TS-431, TS-431+, TS-259 Pro+, and TS-269 Pro. Designed specifically for QNAP 2-bay NAS and NVR units in this generation — not a universal adapter. Before ordering, confirm your unit model against this list; QNAP 4-bay and higher-capacity enclosures draw more power and require a different supply. If you are unsure which adapter your unit requires, cross-reference the label on your existing adapter or consult the unit's hardware spec sheet.
Installation Notes
Direct plug-in replacement — no tools required. Match the DC output connector to the port on the rear of your enclosure before powering on. Do not substitute this adapter for enclosures with higher wattage requirements; running an undersized supply on a loaded 4-bay unit risks unexpected shutdowns or premature adapter failure. Sourced factory-new with genuine QNAP specification compliance — no grey-market substitutes.
