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Black rectangular 4-pin 12V AC adapter with 10 ft power cord

WAWEIS

WAWEIS 4-Pin 12V AC Adapter for QNAP TS-420 TS-421

SKU CH-4BWB-QZ6ZM

A 12V replacement power supply with a 10 ft cord, compatible with QNAP TS-420 and TS-421 NAS units

  • World-wide 100–240 V input works anywhere
  • 10 ft total cord length reaches distant outlets
  • Over-current, over-voltage and short-circuit protection built in
  • FCC, CE and RoHS certifications confirm safety compliance
  • 100 % compatible replacement for QNAP TS-420 and TS-421

Compatible 12 V adapter for QNAP 4-bay NAS

This 4-pin 12 V power supply replaces the original adapter for the TS-420 and TS-421 all-in-one personal cloud servers. It delivers the exact voltage and connector required by those 4-bay units. The unit is built with 100 % new components and carries FCC, CE and RoHS certification. It is intended for owners of the listed QNAP models who need a direct replacement.

Protection and cord length under continuous use

The adapter includes over-current, over-voltage, short-circuit and total-power protection circuits that operate continuously while the NAS runs. A smart chip adds over-heating protection and the cable uses high-quality wire with anti-interference isolation. The complete power cord measures 10 ft, giving flexibility for rack or desk placement. These features maintain stable output during sustained 24/7 operation.

4-pin 12 V connector decides fit

The single specification that determines compatibility is the 4-pin 12 V output connector matching the TS-420 and TS-421 input. World-wide 100-240 VAC input at 50/60 Hz allows use in any region without a separate voltage selector. Builders who need a different pin count or voltage cannot use this adapter. No other connector or voltage variant is offered.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $36.99
Pricier than about 66% of the 27,790 comparable items (median $30.99).

Specifications

No published specifications for this item yet.

Questions about this item

Does the adapter run hot or make noise when the NAS operates 24 hours a day?

The unit has overload and overheating protection with a smart chip, plus short-circuit and over-voltage safeguards, so it stays cool and silent during continuous use.

What must I already own for this adapter to power my NAS?

You need a QNAP TS-420 or TS-421 all-in-one 4-bay personal cloud NAS that uses a 4-pin 12 V DC input.

Will this supply work reliably with the original components inside an older TS-420 or TS-421?

Yes, it is 100 % OEM compatible and tested to meet the original specifications, with FCC, CE and RoHS certification.

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