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Black rectangular AC to DC power adapter with LED display and multiple interchangeable tips

AOYADAISU 3V-24V 120W 5A Adjustable Power Adapter

SKU CH-K9VN-S1YWP

Adjustable AC-to-DC power supply delivering 3V to 24V at up to 5A with 14 interchangeable tips and polarity converter

  • Adapter typeUSB C Charger
  • First connector3-Pin
  • Second connector3-Pin
  • Connector typeMale
  • Units per package1
  • Product type9 V
  • Adjustable 3 V to 24 V output matches many devices
  • 120 W maximum power with 5 A current limit
  • Built-in overload, overvoltage, overcurrent and short-circuit protection
  • LED display shows voltage and includes off position
  • 14 interchangeable tips plus polarity converter cover most plugs

Universal Adjustable DC Power Adapter

The AOYADAISU 3V-24V 120W 5A unit converts AC mains input of 100-240V at 50-60Hz into a variable DC output. It is built for technicians and hobbyists powering LED strips, cameras, routers, 3D printers, CCTV systems, monitors, and sound bars. The package includes 14 interchangeable tips and a polarity converter cable for wide device compatibility.

Voltage and Current Selection

The adapter delivers adjustable output voltages of 3V, 4.5V, 5V, 6V, 7.5V, 9V, 12V, 14V, 15V, 16V, 18V, 19V, 19.5V, 20V, 22V, and 24V with a maximum of 120W and 5A. An LED display shows the selected voltage. Built-in overload, overvoltage, overcurrent, and short-circuit protection safeguards connected equipment during operation.

Installation and Common Issues

Select the correct tip size such as 5.5x2.5mm or 5.5x1.7mm and set the voltage to match the device label before connecting. The short black cable is a polarity reverser, not an extension; using it incorrectly swaps positive and negative contacts. The display may flash for about a minute after unplugging due to internal capacitance, which is normal behavior.

How it compares

Measured against everything we stock in AC Adapters & Power Bricks, at today’s prices. Recalculated every night.

Price $50.99
Pricier than about 80% of the 3,875 comparable items (median $23.99).

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Specifications

Product
Brand nameDell
Product line3 V~24 V 120 W 5A
Model name3 V~24 V 120 W 5A
Part numberAD-004
Product type9 V
Adapter typeUSB C Charger
Product colorBlack
Ports & slots
First connector3-Pin
Second connector3-Pin
Connector typeMale
Size & build
Product dimensions14.33 in W × 12.83 in H × 9.06 in D
Product weight19.75 oz
In the box
Units per package1
In the box1

Questions about this item

What does the 120W 5A rating mean when the adapter is powering a real device?

The adapter can deliver up to 120 watts at a maximum of 5 amps; it will safely supply any current your device draws up to that 5A limit.

How does the adjustable DC output range of 3V to 24V work with the 100-240V AC input?

The unit accepts 100-240V AC at 50/60Hz and converts it to a selectable DC voltage between 3V and 24V, with the 5A current cap applying across the whole range.

Which barrel-plug sizes are included so I can match my device's power port?

Fourteen tips are supplied covering sizes such as 6.4x4.0mm, 5.5x2.5mm, 5.0x3.0mm, 5.0x2.5mm, 6.3x3.0mm, 5.5x1.7mm, 4.8x1.7mm, 4.0x1.7mm, 3.5x1.35mm, 3.0x1.1mm, 2.5x0.7mm plus Micro-USB and Type-C connectors.

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