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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
USB_TCPCI_R2_V1p3_30122_CLEAN.pdf4.02 MBUSB Type-C® Port Controller Interface Specification Read More	Specification		USB Type-C	03/16/2022
pd_fw_update_specification_rev_1_0_20160915b.pdf1.9 MBUSB Power Delivery Firmware Update Specification Read More	Specification		USB Power Delivery	09/15/2016
usbmon10.pdf404.94 KBMonitor Control Class 1.0 Read More	Specification			06/04/2020
superspeed_inter-chip_supplement_1_02_19may2014.pdf609.62 KBInter-Chip Supplement to the USB Revision 3.0 Specification, Revision 1.02 Read More	Specification			05/19/2014
usb_otg_and_eh_3-0_release_1_1_10may2012.pdf591.63 KBOn-The-Go and Embedded Host Supplement to the USB Revision 3.0 Specification, Revision 1.1 Read More	Specification			05/10/2012
Included in USB 3.1 zip file0 bytesUSB 3.1 Device Class Specification for Debug Devices Read More	Specification			07/14/2015
USB Authentication Specification Rev 1.0 with ECN and Errata through January 7, 2019.zip2.69 MBUSB Authentication Specification Rev. 1.0 with ECN and Errata through January 7, 2019 Read More	Specification			02/11/2019
eUSB2.zip2.02 MBEmbedded USB2 (eUSB2) Physical Layer Supplement to the USB Revision 2.0 Specification, Rev. 1.2 Embedded USB2 (eUSB2) Physical Layer Supplement to the USB Revision 2.0 Specification, Rev. 1.2 and corresponding ECN Read More	Specification		USB 2.0	02/07/2022
USB PD R3.2 V1.0_1.zip68.63 MBUSB Power Delivery 1. USB Power Delivery Specification Revision 2.0 Version 1.3 and corresponding Adopters Agreement 2. USB Power Delivery Specification Revision 3.1 Version 1.8, ECNs and corresponding Adopters Agreement 3. USB Power Delivery Specification Revision 3.2 Version 1.0 and corresponding Adopters Agreement Read More	Specification	Base Specification	USB Power Delivery	10/31/2023
usb_32_202206_0.zip23.84 MBUSB 3.2 Revision 1.1 - June 2022 Read More	Specification	Base Specification	USB 3.2	06/03/2022
USB4 Specification June 2023.zip61.99 MBUSB4® Specification v2.0 Read More	Specification	Base Specification	USB4	06/30/2023
usb_20_20230224.zip13.28 MBUSB 2.0 Specification The Original USB 2.0 specification released on April 27, 2000 USB 2.0 Adopters Agreement Errata to the USB 2.0 specification as of December 7, 2000 Mini-B connector Engineering Change Notice to the USB 2.0 specification Pull-up/pull-down Resistors Engineering Change Notice to the USB 2.0 specification Errata to the USB 2.0 specification as of May 28, 2002 Interface Association Descriptor Engineering Change Notice to the USB 2.0 specification Rounded Chamfer Engineering Change Notice to the USB 2.0 specification as of October 8, 2003 Unicode Engineering Change Notice to the USB 2.0 specification as of February 21, 2005 Inter-Chip USB Supplement Revision 1.0 as of March 13, 2006 Micro-USB Cables and Connectors Specification Revision 1.01 as of April 4, 2007 and corresponding Adopters Agreement USB 2.0 Link Power Management Addendum Engineering Change Notice to the USB 2.0 specification as of July 16, 2007 High-Speed Inter-Chip USB Electrical Specification Revision 1.0 as of September 23, 2007 Suspend Current Limit Changes Engineering Change Notice to the USB 2.0 Specification as of April 9, 2008 5V Short Circuit Withstand Requirement Change Engineering Change Notice to the USB 2.0 Specification as of December 22, 2008 Device Capacitance Engineering Change Notice to the USB 2.0 Specification as of December 22, 2008 Material Change Engineering Change Notice to the USB 2.0 Specification as of December 22, 2008 USB 2.0 Phase-locked SOFs Engineering Change Notice to the USB 2.0 Specification as of December 22, 2008 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 Quad Type Cable Additional for Micro USB ECN as of December 29, 2009 Clarification on the Chamfer on USB 2.0 Micro Connectors ECN as of March 23, 2010 Maximum Unmating Force Value Definition to USB 2.0 Micro Connectors ECN as of March 23, 2010 "On-The-Go Supplement to the USB 2.0 Specification" Adopters Agreement USB TEST_MODE Selector Values ECN as of July 26, 2010 Errata for USB 2.0 ECN: Link Power Management (LPM) - 7/2007 as of October 11, 2011 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 HSIC ECN as of May 21, 2012 USB 2.0 Connect Timing ECN Update as of April 4, 2013 HSIC Disconnect Supplement ECN as of September 18, 2013 USB 2.0 VBUS Max Limit ECN as of August 11, 2014 USB OTG EH ECN Maximum Vbus Voltage dated November 26, 2014 USB 2.0 DC Resistance as of October 8, 2021 Read More	Specification	Base Specification	USB 2.0	10/08/2021
USB Type-C Locking Connector Specification.zip821.04 KBUSB Type-C® Locking Connector Specification Read More	Specification	Cable and Connector Specification	USB 2.0, USB 3.2, USB Type-C	04/10/2024
UCSI Revision 3.0.zip3.61 MBUSB Type-C® Connector System Software Interface (UCSI) Specification Read More	Specification	Cable and Connector Specification	USB Type-C	06/23/2023
CabConn20.pdf0 bytesCables and Connectors Class 2.0 USB Cables and Connectors Class Document Read More	Specification	Cable and Connector Specification		08/01/2007
USB Type-C 2.3 Release 202310.zip27.79 MBUSB Type-C® Cable and Connector Specification Release 2.3 Read More	Specification	Cable and Connector Specification	USB Type-C	10/31/2023
CCWG_A_Plug_Form_Factor_Guideline_Revision_1.0_.pdf0 bytesSeries 'A' Plug form factor Guideline 1.0 USB 'A' Plug Form Factor Rev. 1.0 Read More	Specification	Cable and Connector Specification		03/23/2005
MezzanineConnectorFinal.pdf0 bytesUSB Connector for Mezzanine Applications Guidelines Rev. 1.0 USB Connector for Mezzanine Applications Guidelines Rev. 1.0 Read More	Specification	Cable and Connector Specification
USB_Thin_Card.zip0 bytesUSB Thin Card v1.0 and Adopters Agreement USB This Card Specification Rev 1.0 Adopters Agreement Read More	Specification	Cable and Connector Specification		06/21/2012
USB 3.1 Legacy Cable and Connector Revision 1.0.zip7.64 MBUSB 3.1 Legacy Cable and Connector Revision 1.0 Read More	Specification	Cable and Connector Specification		04/24/2020
USB Audio v4.0.zip2.71 MBUSB Audio Devices Release 4.0 and Adopters Agreement USB Device Class Definition for Audio Devices Release 4.0 USB Audio v4.0 Adopters Agreement Read More	Specification	Device Class Specification		07/28/2023
CDC1.2_WMC1.1_052013.zip0 bytesErrata updates for CDC v1.2 and WMC v1.1 as of DEC-2012 CDC Subclass for Communications Devices CDC Subclass for Wireless Mobile Communications Devices 1.1 CDC v1.2 WMC v1.1 Errata 1 Adopters Read More	Specification	Device Class Specification		12/01/2012
USB_Type-C_Bridge_Spec110117.zip3.11 MBUSB Type-C® Bridge Specification v1.1 USB Type-C® Bridge Class Specification v1.1 USB Type-C® Bridge Class Specification v1.1 - redline USB 3.0 Adopters Agreement Read More	Specification	Device Class Specification	USB Type-C	10/23/2018
usb_msc_cbi_1.1.pdf0 bytesMass Storage Control/Bulk/Interrupt (CBI) Specification 1.1 Mass Storage Control/Bulk/Interrupt (CBI) Specification 1.1 Read More	Specification	Device Class Specification		06/23/2003
USBTMC_1_006a.zip0 bytesTest & Measurement Class Specification USB Test and Measurement Class Specification (USBTMC) Read More	Specification	Device Class Specification		04/14/2003
USB_AV_Specification_Rev_1.0.zip0 bytesAudio/Video Device Class v1.0 Spec and Adopters Agreement USB Device Class Definition for Audio/Video Devices AVFormat 1 - Video over Bulk USB Device Class Definition for Audio/Video Devices AVFormat 2 - Isochronous Audio USB Device Class Definition for Audio/Video Devices AVFormat 3 - Uncompressed Full Frame Isochronous Video USB Device Class Definition for Audio/Video Devices AV Device Class Overview & AV Function Definition Video & USB Timings Read More	Specification	Device Class Specification		12/07/2011
CDC_EEM10.pdf0 bytesCDC Subclass Specification for Ethernet Emulation Model Devices 1.0 CDC Subclass Specification for Ethernet Emulation Model Devices 1.0 Read More	Specification	Device Class Specification		02/02/2005
usbmass-ufi10.pdf0 bytesMass Storage UFI Command Specification 1.0 Mass Storage UFI Command Specification 1.0 Read More	Specification	Device Class Specification		12/14/1998
USB_Video_Class_1_5.zip0 bytesVideo Class v1.5 document set UVC v1.5 Class specification USB Video Example v1.5 USB Video FAQ v1.5 USB Video Payload DV v1.5 USB Video Payload Frame Based v1.5 USB Video Payload H264 v1.5 USB Video Payload MPEG-2 TS v1.5 USB Video Payload Uncompressed v1.5 USB Video Payload VP8 v1.5 USB Video Payload Stream Based v1.5 USB Video Transport v1.5 USB Video Payload_MJPEG v1.5 USB Video Temporal Encoder Examples v1.5 Read More	Specification	Device Class Specification		08/09/2012
avconfiguration.html581 bytesAVSchema Documentation Read More	Specification	Device Class Specification
NCM10_012011.zip0 bytesNetwork Control Model Devices Specification v1.0 and errata and Adopters Agreement Network Control Model Devices Specification v1.0 and errata Adopters Agreement Read More	Specification	Device Class Specification		11/24/2010
usb_msc_boot_1.0.pdf0 bytesMass Storage Bootability Specification 1.0 Mass Storage Bootability Specification 1.0 Read More	Specification	Device Class Specification		10/25/2004
USB_Video_Class_1_1_090711.zip0 bytesVideo Class v1.1 document set USB Video Class v1.1 USB Video Identifiers v1.1 USB Video Payload DV v1.1 USB Video Payload Frame Based v1.1 USB Video Payload MJPEG v1.1 USB Video Payload MPEG-2 TS v1.1 USB Video Payload Uncompressed v1.1 USB Video Payload Stream Based v1.1 USB Video Payload H264 v1.0 USB Video Transport v1.1 USB Video Example v1.1 USB Video FAQ v1.1 USB Video Payload H264 09Aug2011 Errata Read More	Specification	Device Class Specification		06/01/2005
AVSchema Files: http://avschemas.usb.org/v1/avschema.xsd and http://avschemas.usb.org/v1/avtypes.xsd Read More	Specification	Device Class Specification
MBIM10Errata1_073013.zip0 bytesMobile Broadband Interface Model v1.0 Errata -1 and Adopters Agreement Mobile Broadband Interface Model v1.0 Errata -1 Adopters Agreement Read More	Specification	Device Class Specification		12/26/2012
Lockable_Mass_Storage_Spec_and_Adopters_Agreement.zip0 bytesLockable Mass Storage Specification 1.0 and Adopters Agreement Lockable Mass Storage Specification 1.0 Adopters Agreement Read More	Specification	Device Class Specification		08/01/2007
AVDD_Creator_User_Manual.pdf0 bytesAVDD Creator User Manual Read More	Specification	Device Class Specification		12/10/2011
hid1_11.pdf1007.31 KBDevice Class Definition for HID 1.11 Read More	Specification	Device Class Specification		06/04/2020
uasp_1_0.zip0 bytesUSB Attached SCSI Protocol (UASP) v1.0 and Adopters Agreement USB Attached SCSI Protocol (UASP) v1.0 Adopters Agreement Read More	Specification	Device Class Specification		06/24/2009
AVDD_Creator_Installer.zip0 bytesAVDD Creator Installer Read More	Specification	Device Class Specification
MBIMMultiflow10.zip0 bytesUSB Multiflow Extension for Mobile Broadband Interface Model v1.0 and Adopters Agreement USB Multiflow Extension for Mobile Broadband Interface Model v1.0 Adopters Agreement Read More	Specification	Device Class Specification		07/23/2017
UASP_Bootability_Rev_1_0.zip0 bytesUSB Mass Storage Class Specification for UASP Bootability v1.0 and Adopters Agreement USB Mass Storage Class Specification for UASP Bootability v1.0 Adopters Agreement Read More	Specification	Device Class Specification		03/04/2013
USB I3C Device Class Revision 1.0.pdf1.31 MBUSB I3C Device Class Specification Read More	Specification	Device Class Specification		01/07/2022
AV_BDP_v1.0.pdf0 bytesUSB Device Class Definition for Audio/Video Devices Basic Device Profile (BDP) USB Device Class Definition for Audio/Video Devices Basic Device Profile (BDP) Read More	Specification	Device Class Specification		06/12/2012
oaaddataformatsv6.pdf597.1 KBOAAD Arcade Usage Table Read More	Specification	Device Class Specification		06/04/2020
ContentSecurity_v2.0.pdf0 bytesDevice Class Definition for Content Security Devices 2.0 Device Class Definition for Content Security Devices 2.0 Read More	Specification	Device Class Specification		06/12/2012
Media_Agnostic_USB_v1.0a.zip0 bytesMedia Agnostic USB v1.0a Spec and Adopters Agreement Media Agnostic USB v1.0a Spec Adopters Agreement Read More	Specification	Device Class Specification		07/29/2015
BCv1.2_070312.zip1.31 MBBattery Charging v1.2 Spec and Adopters Agreement Battery Charging Specification v1.2 Errata for "Battery Charging Specification Revision 1.2 December 7, 2010", as of Oct 12, 2011 Errata for "Battery Charging Specification Revision 1.2 October 12, 2011" as of Mar 15, 2012 Battery Charging Specification (Including errata and ECNs through March 15, 2012) Revision 1.2, March 15, 2012 Read More	Specification	Device Class Specification		12/11/2019
ContentSecurity_v2.0.pdf0 bytesContent Security Method 1 - Basic Authentication Protocol 1.0 Content Security Method 1 - Basic Authentication Protocol 1.0 Read More	Specification	Device Class Specification		01/25/2000
MTPv1_1.zip0 bytesMedia Transfer Protocol v.1.1 Spec and MTP v.1.1 Adopters Agreement Media Transfer Protocol v.1.1 Spec MTP v.1.1 Adopters Agreement Read More	Specification	Device Class Specification		04/06/2011