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Black rectangular AC adapter with 5.5x2.5mm barrel plug and integrated cable

BASEUS

BASEUS 5V 1A AC Adapter 5.5x2.5mm Black

SKU CH-N4E3-699KW

A 5 V 1 A AC adapter with a 5.5 mm x 2.5 mm barrel tip, accepting 100-240 V input and providing short-circuit, overcurrent, overvoltage and overload protection

  • TypeAC Adapters
  • Universal 100-240 V input works worldwide
  • 5 V 1 A output delivers steady 5 W power
  • 5 mm x 2.5 mm barrel fits compatible devices
  • Built-in short-circuit and overload protection safeguards equipment
  • Compact black adapter replaces lost or damaged chargers

What this adapter powers

This BASEUS unit converts 100-240 V AC mains power to a fixed 5 V DC output rated at 1 A. The 5.5 mm by 2.5 mm barrel plug fits devices that specify exactly that tip size. It is intended as a replacement or spare supply for compatible hardware.

Who should buy it and who should not

It suits owners of equipment that demands 5 V at up to 1 A through a 5.5x2.5 mm barrel jack. Buyers whose gear uses 5.5x2.1 mm, 4.0x1.7 mm, 3.5x1.35 mm, 3.0x1.1 mm or 2.5x0.7 mm plugs cannot use this adapter. Devices requiring more than 1 A at 5 V or a different voltage entirely also need a different supply.

The deciding specification

The barrel plug measures 5.5 mm outer diameter by 2.5 mm inner diameter; this single dimension determines whether the adapter will physically and electrically mate with the target device.

Highlights

  • Universal 100-240 V input works worldwide
  • 5 V 1 A output delivers steady 5 W power
  • 5 mm x 2.5 mm barrel fits compatible devices
  • Built-in short-circuit and overload protection safeguards equipment
  • Compact black adapter replaces lost or damaged chargers

Specifications

TypeAC Adapters

Questions about this item

What size barrel jack does the 5.5 x 2.5 mm tip fit?

The tip has a 5.5 mm outer diameter and a 2.5 mm inner diameter; it will not fit 5.5 x 2.1 mm, 4.0 x 1.7 mm, 3.5 x 1.35 mm, 3.0 x 1.1 mm or 2.5 x 0.7 mm jacks.

How do I connect the adapter to mains power and the device?

Plug the IEC C7 mains lead into a 100-240 V 50/60 Hz socket, then insert the 5.5 x 2.5 mm barrel plug into the device’s DC input — ensure the plug seats fully or the protection circuit may cut power.

When should I replace the adapter or its cable?

Replace the unit if the barrel tip becomes loose, the cable sheath shows cracks, or the over-current, over-voltage, overload or short-circuit protections trip repeatedly during normal use.

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