QNAP · PSU-QNP-90W
Power Supply for QNAP TS-431 — 12V DC Replacement Adapter
12V DC7.5A / 90WCenter-positive ⊕EU plug
€49,95 incl. VAT · shipping from €4,95
Backorder — ships in 7-21 business days
⚠ Never use a 19V laptop charger. Marketplace listings offering "19V" adapters for this NAS are mislabelled — 19V destroys the device. Use 12V only.
⚠ Before ordering, check the label on your original QNAP adapter: barrel plug 5.5 × 2.5 mm, 12V, center-positive. QNAP used different suppliers over the years — if your label shows different values, contact us first.
Ordered before 16:00 on business days = shipped the same day. 30-day returns.
✓ CE-certified✓ Tested before shipping✓ 2-year warranty✓ 30-day returns✓ Ships from Belgium✓ Exact-spec match
Fits these devices
✓ QNAP TurboNAS TS-431 (TS-431) ✓ QNAP TurboNAS TS-451 (TS-451)✓ QNAP TurboNAS TS-451+ (TS-451+)✓ QNAP TurboNAS TS-431+ (TS-431+)✓ QNAP TurboNAS TS-431P (TS-431P)✓ QNAP TurboNAS TS-251+ (TS-251+) ✓ Other 12V DC / ≥7.5A devices with 5.5 × 2.5 mm barrel center-positive plug
Specifications
| Compatible device | QNAP TurboNAS TS-431 (TS-431) |
|---|---|
| Output voltage | 12V DC |
| Output current | 7.5A (90W max) |
| Connector | 5.5 × 2.5 mm barrel |
| Polarity | Center-positive ⊕ |
| Input | 100–240V AC, 50/60Hz |
| Plug type | EU (type C/E/F) |
| Cable length | 1.2 m |
| Certification | CE, RoHS |
| Replaces | Original QNAP 12V DC adapter shipped with the TS-431 |
⚠ Always match voltage (12V DC) and polarity exactly. A higher amperage rating is safe; a different voltage is not.
How to verify this is the right power supply
Check the label on your original QNAP adapter. It should read Output: 12V DC ⎓ 7.5A with a center-positive polarity symbol. The barrel connector measures 5.5 × 2.5 mm barrel. If your adapter shows different values, it is not the right model.
Frequently asked questions
Which power supply does the QNAP TS-431 use?
The TS-431 is powered by an external 12V DC adapter (90W). The original QNAP adapter can be replaced by any 12V DC adapter with the same barrel connector, correct polarity and at least the same wattage.
Can I use a power supply with a higher amperage rating?
Yes. The device only draws the current it needs. A higher amperage rating is safe. Never use a higher voltage.
Is this an original QNAP power supply?
This is a compatible replacement adapter that meets or exceeds the original specifications, is CE-certified and tested before shipping. It is not manufactured by QNAP.