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USB
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=== Version history <span class="anchor" id="0.6e"></span><span class="anchor" id="0.7"></span><span class="anchor" id="0.8"></span><span class="anchor" id="0.9"></span><span class="anchor" id="0.99"></span><span class="anchor" id="1.0RC"></span> === ==== Release versions ==== {| class="wikitable sortable" |- ! scope="row" | Name ! scope="row" | Release date ! scope="row" | Maximum signaling rate ! scope="row" | Note |- ! scope="row" | {{Nowrap|USB 0.7}} | {{Dts|November 1994}} | {{dunno}} | rowspan="4" | Pre-release |- ! scope="row" | {{Nowrap|USB 0.8}} | {{Dts|December 1994}} | {{dunno}} |- ! scope="row" | {{Nowrap|USB 0.9}} | {{Dts|April 1995}} | {{Nowrap|12 Mbit/s: Full Speed (FS)}} |- ! scope="row" | {{Nowrap|USB 0.99}} | {{Dts|August 1995}} | {{dunno}} |- ! scope="row" | {{Nowrap|USB 1.0-RC}} | {{Dts|November 1995}} | {{dunno}} | Release Candidate |- ! scope="row" | {{Nowrap|USB 1.0}} | {{Dts|January 1996}} | rowspan=2|{{Nowrap|1.5 Mbit/s: Low Speed (LS)}}<br />{{Nowrap|12 Mbit/s: Full Speed (FS)}} | rowspan="2" | Renamed to ''Basic-Speed'' |- ! scope="row" | {{Nowrap|USB 1.1}} | {{Dts|September 1998}} |- ! scope="row" | {{Nowrap|USB 2.0}} | {{Dts|April 2000}} | {{Nowrap|480 Mbit/s: High Speed (HS)}} | |- ! scope="row" | {{Nowrap|USB 3.0}} | {{Dts|November 2008}} | {{Nowrap|5 Gbit/s: SuperSpeed (SS)}} | Renamed to ''USB 3.1 Gen 1'',<ref name="USB 3.1 language usage 2015-05"/> and later to ''USB 3.2 Gen 1Γ1'' |- ! scope="row" | {{Nowrap|USB 3.1}} | {{Dts|July 2013}} | {{Nowrap|10 Gbit/s: SuperSpeed+ (SS+)}} | Renamed to ''USB 3.1 Gen 2'',<ref name="USB 3.1 language usage 2015-05"/> and later to ''USB 3.2 Gen 2Γ1'' |- ! scope="row" | {{Nowrap|USB 3.2}} | {{Dts|August 2017}} | {{Nowrap|20 Gbit/s: SuperSpeed+ two-lane}} | Adds a second full-duplex lane for data exchange, noted as ''Γ2'': ''USB 3.2 Gen 1Γ2'' and ''Gen 2Γ2''. This requires full-featured [[USB-C]] cables and USB 3.2 fabric.<ref>{{cite web |title=USB 3.2 explained: Making sense of current and confusing USB standards |url=https://www.cnet.com/tech/mobile/usb-3-2-explained-making-sense-of-current-and-confusing-usb-standard/ |author=Matt Elliot |date=11 March 2019|website=CNET |access-date=26 July 2022 |url-status=live |archive-url=https://web.archive.org/web/20210707230329/https://www.cnet.com/tech/mobile/usb-3-2-explained-making-sense-of-current-and-confusing-usb-standard/|archive-date=7 July 2021 }}</ref> |- ! scope="row" | {{Nowrap|USB4}} | {{Dts|August 2019}} | {{Nowrap|40 Gbit/s: two-lane}} | Includes new ''USB4 Gen 2Γ2'' (64b/66b encoding) and ''Gen 3Γ2'' (128b/132b encoding) modes and introduces USB4 routing for tunneling of USB 3.2, DisplayPort 1.4a and PCI Express traffic and host-to-host transfers, based on the Thunderbolt 3 protocol. Requires USB4 Fabric. |- ! scope="row" | {{Nowrap|USB4 2.0}} | {{Dts|September 2022}} | {{Nowrap|120 β 40 Gbit/s: asymmetric}} | Includes new ''USB4 Gen 4Γ2'' (PAM-3 encoding) mode to get 80 and 120 Gbit/s over Type-C connector.<ref>{{cite web | url=https://www.usb.org/document-library/usb4r-specification-v20 | title=USB4 Specification v2.0 | USB-IF }}</ref> Requires USB4 Fabric. |} ==== Power-related standards <span class="anchor" id="PD"></span>==== {| class="wikitable sortable" |- ! style="width:16em;" | Release name ! Release date ! style="width:8em;" | Max. power ! Note |- | [[USB Battery Charging]] Rev. 1.0 | 2007-03-08 | 7.5 W (5 V, 1.5 A) | |- | USB Battery Charging Rev. 1.1 | 2009-04-15 | 7.5 W (5 V, 1.5 A) |Page 28, Table 5β2, but with limitation on paragraph 3.5. In ordinary USB 2.0's Standard-A port, 1.5 A only.<ref>{{Cite web|url=https://usb.org/document-library/battery-charging-v11-spec-and-adopters-agreement|title=Battery Charging v1.1 Spec and Adopters Agreement|website=USB.org|access-date=31 July 2019|archive-date=11 January 2021|archive-url=https://web.archive.org/web/20210111005750/https://usb.org/document-library/battery-charging-v11-spec-and-adopters-agreement|url-status=dead}}</ref> |- | USB Battery Charging Rev. 1.2 | 2010-12-07 | 7.5 W (5 V, 1.5 A) |<ref>{{Cite web|url=https://usb.org/document-library/battery-charging-v12-spec-and-adopters-agreement|title=Battery Charging v1.2 Spec and Adopters Agreement|website=USB.org|access-date=31 July 2019|archive-date=31 July 2019|archive-url=https://web.archive.org/web/20190731150826/https://usb.org/document-library/battery-charging-v12-spec-and-adopters-agreement|url-status=live}}</ref> |- | [[USB hardware#USB power delivery|USB Power Delivery]] Rev. 1.0 (V. 1.0) | 2012-07-05 | 100 W (20 V, 5 A) | Using FSK protocol over bus power (V{{sub|BUS}}) |- | USB Power Delivery Rev. 1.0 (V. 1.3) | 2014-03-11 | 100 W (20 V, 5 A) | |- | USB Type-C Rev. 1.0 | 2014-08-11 | 15 W (5 V, 3 A) | New connector and cable specification |- | USB Power Delivery Rev. 2.0 (V. 1.0) | 2014-08-11 | 100 W (20 V, 5 A) | Using BMC protocol over communication channel (CC) on USB-C cables |- | USB Type-C Rev. 1.1 | 2015-04-03 | 15 W (5 V, 3 A) | |- | USB Power Delivery Rev. 2.0 (V. 1.1) | 2015-05-07 | 100 W (20 V, 5 A) | |- | USB Type-C Rev. 1.2 | 2016-03-25 | 15 W (5 V, 3 A) | |- | USB Power Delivery Rev. 2.0 (V. 1.2) | 2016-03-25 | 100 W (20 V, 5 A) | |- | USB Power Delivery Rev. 2.0 (V. 1.3) | 2017-01-12 | 100 W (20 V, 5 A) | |- | USB Power Delivery Rev. 3.0 (V. 1.1) | 2017-01-12 | 100 W (20 V, 5 A) | |- | USB Type-C Rev. 1.3 | 2017-07-14 | 15 W (5 V, 3 A) | |- | USB Power Delivery Rev. 3.0 (V. 1.2) | 2018-06-21 | 100 W (20 V, 5 A) | |- | USB Type-C Rev. 1.4 | 2019-03-29 | 15 W (5 V, 3 A) | |- | USB Type-C Rev. 2.0 | 2019-08-29 | 15 W (5 V, 3 A) | Enabling USB4 over USB Type-C connectors and cables. |- | USB Power Delivery Rev. 3.0 (V. 2.0) | 2019-08-29 | 100 W (20 V, 5 A) |<ref>{{Cite web|url=https://www.usb.org/document-library/usb-power-delivery-0|title=USB Power Delivery|website=USB.org|access-date=3 September 2019|archive-date=3 September 2019|archive-url=https://web.archive.org/web/20190903163400/https://www.usb.org/document-library/usb-power-delivery-0|url-status=live}}</ref> |- | USB Power Delivery Rev. 3.1 (V. 1.0) | 2021-05-24 | 240 W (48 V, 5 A) | |- | USB Type-C Rev. 2.1 | 2021-05-25 | 15 W (5 V, 3 A) |<ref>{{Cite web|url=https://usb.org/document-library/usb-type-cr-cable-and-connector-specification-revision-21|title=USB Type-C Cable and Connector Specification Revision 2.1|website=USB.org|access-date=27 May 2021|archive-date=27 May 2021|archive-url=https://web.archive.org/web/20210527135133/https://usb.org/document-library/usb-type-cr-cable-and-connector-specification-revision-21|url-status=live}}</ref> |- | USB Power Delivery Rev. 3.1 (V. 1.1) | 2021-07-06 | 240 W (48 V, 5 A) |<ref name="USB Power Delivery">{{Cite web|url=https://usb.org/document-library/usb-power-delivery|title=USB Power Delivery|website=USB.org|access-date=27 May 2021|archive-date=27 May 2021|archive-url=https://web.archive.org/web/20210527151756/https://usb.org/document-library/usb-power-delivery|url-status=live}}</ref> |- | USB Power Delivery Rev. 3.1 (V. 1.2) | 2021-10-26 | 240 W (48 V, 5 A) | Including errata through October 2021<ref name="USB Power Delivery"/> This version incorporates the following ECNs: * Clarify use of Retries * Battery Capabilities * FRS timing problem * PPS power rule clarifications * Peak current support for EPR AVS APDO |}
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