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Black rectangular AC adapter with 5.5mm x 2.5mm barrel plug and integrated power cord

BASEUS

BASEUS 12V 2A AC Adapter 5.5mm x 2.5mm Barrel Plug

SKU CH-DYKK-B20XW

Supplies 12 V at up to 2 A for devices with a 5.5 mm × 2.5 mm centre-positive barrel jack

  • Product typeAC Adapters
  • Delivers up to 24W for 12V devices drawing less than 2A
  • Universal 100-240V 50/60Hz input works worldwide without a voltage converter
  • 5mm x 2.5mm centre-positive barrel plug fits compatible CCTV cameras LED strips and speakers
  • Five built-in protections guard against overload over-voltage over-temperature and short-circuits
  • Not a charger — cannot power laptops massagers vacuum cleaners blood-pressure cuffs KVM switches DVD players tablets or karaoke machines

Universal 12 V 2 A power adapter

This 12 V DC adapter delivers up to 2 A for devices that draw less than 24 W. It accepts 100 V to 240 V input at 50 Hz or 60 Hz, making it suitable for worldwide use. The 5.5 mm by 2.5 mm barrel plug uses centre-positive polarity. It is intended for equipment such as LED strips, CCTV cameras or speakers.

Five built-in protection circuits

Overload, over-voltage, over-temperature and short-circuit cut-offs disconnect the output automatically when a fault occurs. These safeguards protect both the adapter and the connected device from damage. No additional software or configuration is required for the protections to function. The unit is a power supply only and cannot charge batteries.

Fixed 12 V output and barrel connector

The adapter provides a single 12 V rail at up to 2 A, so it cannot power devices that need higher voltage or current. The 5.5 mm by 2.5 mm centre-positive plug is incompatible with laptops, tablets, karaoke machines, vacuum cleaners, blood-pressure cuffs and similar equipment. Buyers who need adjustable voltage or a different connector must choose another product.

How it compares

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

Price $13.99
Cheaper than about 85% of the 27,790 comparable items (median $30.99).

Specifications

Product
Product typeAC Adapters

Questions about this item

Will the 5.5 mm × 2.5 mm centre-positive barrel plug wear out and need replacement?

The barrel plug is a passive connector with no moving parts; it does not wear out under normal use and requires no scheduled replacement.

What limits continuous operation at the full 2 A output?

The adapter is rated for 24 W maximum; drawing more than 2 A triggers the overload cut-off, which is the first limit reached under sustained load.

How much heat or noise does the unit produce when running all day at 12 V 2 A?

It has no fan and relies on passive convection; at full load the case becomes warm but stays within the over-temperature protection threshold, and operation is silent.

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