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:

Allion Labs is the authorized ITL of USB-IF, for more details regarding USB4TM and USB Type-C® Cable and Connector, please contact us at

USB4™ and USB Type-C® are registered trademarks of USB Implementers Forum.

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