At UNIFIVE, we consistently fulfill custom order requests that meet customers’ requirements regarding safety standards, design, electrical characteristics, environmental standards, and efficiency standards and are compatible with their various equipment.

When you are searching for AC-DC power adapters, do you have any questions or concerns like the ones listed below?

  • "Since this is a new project, it's hard to predict how well it will sell, but we need a power adapter with special specifications."
  • "Are there any AC-DC adapter manufacturers that offer detailed customization services?"
  • "I would like to request the creation of a custom power supply within the project budget."
  • "Am I able to change the cable?"
  • "What kind of AC adapter or switching power supply is compatible and should be used for products like ours?"
  • "Can you create a custom power supply that meets our strict quality standards?"

Please leave all the above matters to UNIFIVE!!

We accurately grasp the diversifying market and customer needs and flexibly handle custom orders of small quantities. Our development and manufacturing base has a flexible production system with over 1,500 new models developed annually and more than 15,000 samples shipped annually. Since establishing UNIFIVE in Tokyo in 1989, we have expanded our sales bases worldwide and accumulated a wealth of achievements. We have established a quality assurance system for all processes, from collecting market needs to design and development, mass production, quality inspection, and maintenance services. Please get in touch with us if you have any questions about our custom power supplies and other products and services!

Don't hesitate to contact us if you have any questions about our custom power supply or other products and services!

Modification & Product Development Examples

Semi-customized (modified)

Development is based on the specifications of products that have a track record of development (with molds).
The closer the customer's required specifications and the product specifications in Unifive are, the shorter the development time can be expected.
In terms of cost, development costs can be reduced compared to full custom.

Full custom (product development)

Even product specifications with no development track record (no mold) can be commercialized according to customer requirements. We develop custom-made parts, including detailed requirements, designs and safety standards.


Introducing the product development flow of Uni-Five AC adapters and switching power supplies. We have received high praise from design to trial production, mass production, quality inspection,and solid after-sales service.


You can get the product catalog in PDF.

Product initiatives

Since 1989, UNIFIVE has maintained the quality of their AC power adapters and switching power supplies through rigorous quality controls.

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