Document Library

LEGAL DISCLAIMER
THESE SPECIFICATIONS ARE 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 THESE SPECIFICATIONS. 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.
Title Category Type Technology Date
USB2.0Adopters05072026.pdf464.54 KBList of USB 2.0 Adopters
Read More
Legal USB 2.0
USB4ETT_2.0.0_eng51_0.zip69.82 MBUSB4ETT Version 2.0.0
Read More
Tools Test Tool USB4
USB2 Electrical Compliance Specification v1.08.pdf817.25 KBUSB 2.0 Electrical Compliance Test Specification
Read More
Specification Test Specification USB 2.0
USB4 Specification November 2025.zip41.4 MBUSB4® Specification v2.0
Read More
Specification Base Specification USB4
usb_20_20250603.zip13.82 MBUSB 2.0 Specification
  1. The Original USB 2.0 specification released on April 27, 2000
  2. USB 2.0 Adopters Agreement
  3. Errata to the USB 2.0 specification as of December 7, 2000
  4. Mini-B connector Engineering Change Notice to the USB 2.0 specification
  5. Pull-up/pull-down Resistors Engineering Change Notice to the USB 2.0 specification
  6. Errata to the USB 2.0 specification as of May 28, 2002
  7. Interface Association Descriptor Engineering Change Notice to the USB 2.0 specification
  8. Rounded Chamfer Engineering Change Notice to the USB 2.0 specification as of October 8, 2003
  9. Unicode Engineering Change Notice to the USB 2.0 specification as of February 21, 2005
  10. Inter-Chip USB Supplement Revision 1.0 as of March 13, 2006
  11. Micro-USB Cables and Connectors Specification Revision 1.01 as of April 4, 2007 and corresponding Adopters Agreement
  12. USB 2.0 Link Power Management Addendum Engineering Change Notice to the USB 2.0 specification as of July 16, 2007
  13. High-Speed Inter-Chip USB Electrical Specification Revision 1.0 as of September 23, 2007
  14. Suspend Current Limit Changes Engineering Change Notice to the USB 2.0 Specification as of April 9, 2008
  15. 5V Short Circuit Withstand Requirement Change Engineering Change Notice to the USB 2.0 Specification as of December 22, 2008
  16. Device Capacitance Engineering Change Notice to the USB 2.0 Specification as of December 22, 2008
  17. Material Change Engineering Change Notice to the USB 2.0 Specification as of December 22, 2008
  18. USB 2.0 Phase-locked SOFs Engineering Change Notice to the USB 2.0 Specification as of December 22, 2008
  19. Micro-USB Micro-B ID Pin Resistance and Tolerance stack-up between D+ and D- Engineering Change Notice to the MicroUSB Specification to the USB 2.0 Specification, Revision 1.01 as of December 22, 2008
  20. Quad Type Cable Additional for Micro USB ECN as of December 29, 2009
  21. Clarification on the Chamfer on USB 2.0 Micro Connectors ECN as of March 23, 2010
  22. Maximum Unmating Force Value Definition to USB 2.0 Micro Connectors ECN as of March 23, 2010
  23. "On-The-Go Supplement to the USB 2.0 Specification" Adopters Agreement
  24. USB TEST_MODE Selector Values ECN as of July 26, 2010
  25. Errata for USB 2.0 ECN:  Link Power Management (LPM) - 7/2007 as of October 11, 2011
  26. On-The-Go and Embedded Host Supplement to the USB Revision 2.0 Specification, Revision 2.0 version 1.1a as of July 27, 2012
  27. HSIC ECN as of May 21, 2012
  28. USB 2.0 Connect Timing ECN Update as of April 4, 2013
  29. HSIC Disconnect Supplement ECN as of September 18, 2013
  30. USB 2.0 VBUS Max Limit ECN as of August 11, 2014
  31. USB OTG EH ECN Maximum Vbus Voltage dated November 26, 2014
  32. USB 2.0 DC Resistance as of October 8, 2021
  33. USB 2.0 Double Isochronous IN Bandwidth ECN as of June 4, 2024
  34. USB 2.0 eUSB2 Repeater ECN as of September 27, 2024
  35. USB 2.0 Double Isochrnous IN ECN dated April 8, 2025
Read More
Specification Base Specification USB 2.0
Audio2_with_Errata_and_ECN_through_Apr_2_2025.pdf1.79 MBUSB Device Class Definition for Audio Devices Release 2.0 with Errata and ECN through April 2, 2025
Read More
Specification Device Class Specification
Embedded USB2 Version 2.0 Supplement to the USB 2.0 Specification_0.pdf1.37 MBEmbedded USB2 Version 2.0: Supplement to the USB 2.0 Specification (eUSB2V2)
Read More
Specification USB 2.0
eUSB2_0_20240927.zip2.12 MBEmbedded USB2 (eUSB2) Physical Layer Supplement to the USB Revision 2.0 Specification, Rev. 1.2

1. Embedded USB2 (eUSB2) Physical Layer Supplement to the USB Revision 2.0 Specification, Rev. 1.2 and corresponding ECN

2. eUSB2 V1.2 ECN Repeater HS SYNC as of September 27, 2024

3. eUSB2 V1.2 ECN Native Mode Auto-Resum as of September 27, 2024

Read More
Specification USB 2.0
USB MIDI v2_0.pdf1.52 MBUSB Class Definition for MIDI Devices v2.0
Read More
Specification Device Class Specification
USB_2.0_Test_Matrix.pdf58.93 KBUSB 2.0 Test Matrix
Read More
Specification Test Matrix USB 2.0
PIDVID USB 2.0 High Speed Electrical Embedded Host and OTG MOI 1.01.pdf971.8 KBPIDVID USB 2.0 High Speed Electrical Embedded Host and OTG MOI
Read More
Tools Test Tool Instruction USB 2.0
usbhtt.msi10.9 MBUSBHTT Ver 1.2.0.3
Read More
Tools Test Tool USB 2.0
USB20_32_BC12_Drop_Droop_1_4_1.pdf0 bytesUSB2.0/3.2/BC1.2 Drop Droop Test for non-USB Type-C® Products
Read More
Tools Test Tool Instruction USB 2.0, USB 3.2, USB Type-C
otgeh_compliance_plan_1_2.pdf1.27 MBUSB On-The-Go and Embedded Host Automated Compliance Plan for the On-The-Go & Embedded Host Supplement Revision 2.0 Version 1.2
Read More
Specification Test Specification USB 2.0
USB_OTG_v2.0_Amendment_final_052609.pdf0 bytesUSB 2.0 On-The-Go Specification Supplement Adopters Agreement
  • USB 2.0 On-The-Go Specification Supplement Adopters Agreement
Read More
Legal
CabConn20.pdf0 bytesCables and Connectors Class 2.0
  • USB Cables and Connectors Class Document
Read More
Specification Cable and Connector Specification
CabConn20.pdf0 bytesUSB 2.0 Cable and Connector Class Document
Read More
Specification Test Specification USB 2.0
USB 2_0 Adopters Agreement - PDF Submission Update 20230216.pdf158.32 KBUSB 2.0 Adopters Agreement
  • USB 2.0 Adopters Agreement
Read More
Legal USB 2.0