USB 3.2 Specification

Universal Serial Bus Revision 3.2 Specification (.zip file format, size 97 MB) provides the technical details to understand USB 3.2 requirements and design USB 3.2 compatible products. Modifications to the USB 3.2 specification are made through Engineering Change Notices (ECNs). Enclosed in this zip file are the following documents:

1. The USB 3.2 Specification released on September 22, 2017
2. USB 3.1 Legacy Cable and Connector Specification as of September 22, 2017
   
3. USB 3.0 Adopters Agreement
4. On-The-Go and Embedded Host Supplement to the USB Revision 3.0 Specification Revision 1.1 as of May 10, 2012
5. Inter-Chip Supplement to the USB Revision 3.0 Specification, Revision 1.02 as of May 19, 2014
6. USB 3.1 Device Class Specification for Debug Devices as of July 14, 2015
7. USB Type-C^TM Locking Connector Specification, March 9, 2016
   
8. USB Type-C^TM Cable and Connector Specification Revision 1.3, July 14, 2017 and ECNs
   
9. USB Type-C^TM Port Controller Interface Specification as of November, 2017
10. USB Power Delivery Specification Rev. 2.0, Version 1.3 is available at http://www.usb.org/developers/powerdelivery/
    
11. USB Power Delivery Specification Rev. 3.0, Version 1.2, June 21, 2018, ECNs, and corresponding Adopters Agreement
12. USB Authentication Specification Rev. 1.0 with ECN and Errata through July 24, 2017
    

LIMITED COPYRIGHT LICENSE

The USB 3.0 Promoters grant a conditional copyright license under the copyrights embodied in the USB Type-C^TM Cable and Connector Specification to use and reproduce the Specification for the sole purpose of, and solely to the extent necessary for, evaluating whether to implement the Specification in products that would comply with the specification. Without limiting the foregoing, use of the Specification for the purpose of filing or modifying any patent application to target the Specification or USB compliant products is not authorized. Except for this express copyright license, no other rights or licenses are granted, including without limitation any patent licenses. In order to obtain any additional intellectual property licenses or licensing commitments associated with the Specification a party must execute the USB 3.0 Adopters Agreement. NOTE: By using the Specification, you accept these license terms on your own behalf and, in the case where you are doing this as an employee, on behalf of your employer.

LEGAL DISCLAIMER

THIS SPECIFICATION IS PROVIDED "AS IS" AND WITHOUT ANY WARRANTY OF ANY KIND, EXPRESSED OR IMPLIED. WITHOUT LIMITATION, THERE IS NO WARRANTY OF NON-INFRINGEMENT, NO WARRANTY OF MERCHANTABILITY, AND NO WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE. ALL WARRANTIES ARE EXPRESSLY DISCLAIMED.

USER ASSUMES THE FULL RISK OF USING THIS SPECIFICATION. IN NO EVENT SHALL USB-IF
OR THE USB 3.0 PROMOTERS BE LIABLE FOR ANY ACTUAL, DIRECT, INDIRECT, PUNITIVE, OR CONSEQUENTIAL DAMAGES ARISING FROM SUCH USE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

USB 3.0 Adopters Agreement
USB 3.0 Adopters Agreement (.pdf file format, size 146KB)
The USB 3.0 Adopters Agreement allows a signing company to participate in a reciprocal, royalty-free licensing arrangement for compliant products. This agreement applies to both the USB 3.0, USB 3.1 and USB 3.2 specifications, including USB Power Delivery and USB Type-C^TM Cable and Connector specifications. Any USB 3.0 Adopters Agreement shall only be effective if received within one (1) year after first sale of products that include 'Compliant Products'. See the USB 3.0 Adopters Agreement for details.

Archived USB Specifications can be found here.