The USB Implementers Forum (USB-IF) facilitates the development of high-quality compatible USB peripherals (devices) and USB compliance test development.

USB enables easy and quick connections between pcs and peripherals, saving users the hassles of using an USB external card or a switch. USB can be found in almost any IT products, such as laptops, cameras, printers, keyboards, mouse, displays, routers, mobile phones, and the latest consumer electronics.


Updates for USB4TM

USB4TM Specification was recently released by the USB Implementers Forum (USB-IF). Here are the highlights of USB4TM as stated by the USB-IF:

  • Two-lane operation using existing USB Type-C® cables and up to 40Gbps operation over 40Gbps certified cables
  • Multiple data and display protocols that efficiently share the maximum aggregate bandwidth
  • Backward compatibility with USB 3.2, USB 2.0, and Thunderbolt 3

In addition to USB4TM, USB-IF also released revisions of USB Type-C® Cable and Connector Specification R2.0. These Specifications are all available for download at You may also click the following links to download the Specifications:


At Last! A guaranteed test for USB interoperability

Whether or not we like it, improvements in electronics technology is here to stay. For some newly released devices (or models) we often have to either replace our existing systems to accept the latest innovations or purchase additional gadgets that aid compatibility such as a dongle, etc.

How these products reduce the difficulties that consumer face is our main desire at Allion. We are committed to promoting the mission of USB-IF, in guaranteeing USB devices meet the minimum expected standards through verification and validation before declaration of performance capability.  For latest information on ways USB-IF is helping to promote high quality standards for USB and USB interoperability, please visit USB website.

Allion is the only USB-IF accredited test laboratory to provide comprehensive USB compliance testing with full-coverage for every product category, connector type, data rate, and specification (including USB Type-C® / USB 3.0). For over 25 years, Allion has been performing related interoperability test. We know the industry better than anyone and our innovative advantage ensures we can test your USB and device compatibility with a wide range of devices flawlessly. Allion is able to support at either the early or late stage of product development depending on the requirements of the customer. Our goal is to make sure that your products comply with the industry standards.

A list of our test coverage is shown below.

USB ExpressCard

We also offer USB ExpressCard test service, for more info, please check USB-IF Web: USB ExpressCard

Other Related Tests:

  • Compatibility Test
  • Electrical Test
  • Battery Charging Test
  • SCSI Command Test
  • USB OTG (pretest only) / Embedded Host TPL (Targeted Peripheral List) Test

That is not all that we do, at Allion, our test engineers also provide customized testing support services and we are able to provide recommendations and competitive analysis. We support you all the way with professional advice and debugging services to ensure that your product reaches the required passing requirements before it is released for production. And guess what? That your customers are content with the products obtained.

Beyond compliance testing, Allion also offers issue analysis, product validation, and related engineering services.


This information is provided for convenience only. This information is not and should not be relied upon as an official communication of USB Implementers Forum (USB-IF). Official communications of USB-IF are available at its website at or otherwise directly from USB-IF.

USB Type-C® and USB-C® are registered trademarks of USB Implementers Forum.