• Preferred Supplier

CUI Inc.

Image of CUI's Internal AC-DC

Internal AC-DC

Compact & efficient internal ac-dc power supplies from CUI offer board mount, chassis mount and DIN rail styles, with power ranging from 1 to 550 W.

Image of CUI's External AC-DC

External AC-DC

CUI’s diverse selection of wall plug-in and desktop adapters offer a full suite of safety approvals, high efficiency and 3 to 250 W of power.

Image of CUI's DC-DC


The 1000+ model range of CUI’s dc-dc converters offers economical low power solutions as well as robust high-power dc-dc modules, with power options from 1 to 600 W.

Tools and Support

Featured Videos

SDI200G Series GaN Adapters | First Look Video
SDI160G-UD Series | Datasheet Preview
160 Watt GaN Desktop Adapter- Portable Power
The Benefit of GaN Power Adapters
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Recent PTMs

5 minutes
High Efficiency Switching DC Regulators
Available configurations, advantages versus linear regulators, key specifications, and possible applications for CUI's high efficiency switching DC regulators.
5 minutes
Low Power DC-DC Converters
Provides an economical and reliable means of converting and/or isolating DC rails within a distributed power system for a variety of applications.
5 minutes
Encapsulated AC/DC Power Supply Series
This presentation will provide an overview of CUI’s encapsulated AC/DC power supply family, including a summary of available models, features, and target applications.
10 minutes
Power Supply Safety Standards, Agencies and Marks
Reviewing the power supply international safety standards, the major agencies, and regional safety marks.
5 minutes
DC-DC Converters for Renewable Energy Applications
This is an overview of CUI’s AE series of wide input DC-DC converters, including their benefits, features, and use in renewable energy applications
10 minutes
Medical Power Supplies and the IEC 60601-1 Medical Design Standards
Overview of the IEC 60601-1 medical design standards as well as an introduction to CUI's line of internal and external certified products for this line.
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About CUI Inc.

Since 1989, CUI has focused on improving the way power products are purchased now and, in the future, while also improving the experience for the design engineer. Along with unparalleled customer service and a variety of power resources, CUI also provides a diverse range of ac-dc power supplies, dc-dc converters, and power filters.