USB Type-C icon.svg
Pins of the USB-C connector
Type Digital audio / video / data connector / power
Designer USB Implementers Forum
Designed 11 August 2014 (published)[1]
Pins 24
USB-C plug (side view)
USB-C receptacle on an MSI laptop

USB-C (formally known as USB Type-C) is a 24-pin USB connector system with a rotationally symmetrical connector.[2]

The USB Type-C Specification 1.0 was published by the USB Implementers Forum (USB-IF) and was finalized in August 2014.[3] It was developed at roughly the same time as the USB 3.1 specification. In July 2016, it was adopted by the IEC as "IEC 62680-1-3".[4]

A device with a Type-C connector does not necessarily implement USB, USB Power Delivery, or any Alternate Mode: the Type-C connector is common to several technologies while mandating only a few of them.[5][6]

USB 3.2, released in September 2017, replaces the USB 3.1 standard. It preserves existing USB 3.1 SuperSpeed and SuperSpeed+ data modes and introduces two new SuperSpeed+ transfer modes over the USB-C connector using two-lane operation, with data rates of 10 and 20 Gbit/s (1 and ~2.4 GB/s).

USB4, released in 2019, is the first USB transfer protocol standard that is only available via USB-C.

  1. ^ Universal Serial Bus Type-C Cable and Connector Specification Revision 1.3 (14 July 2017), Revision History, page 14.
  2. ^ Hruska, Joel (13 March 2015). "USB-C vs. USB 3.1: What's the difference?". ExtremeTech. Retrieved 9 April 2015.
  3. ^ Howse, Brett (12 August 2014). "USB Type-C Connector Specifications Finalized". Retrieved 28 December 2014.
  4. ^ "IEC - News > News log 2016".
  5. ^ "USB Type-C Cable and Connector : Language Usage Guidelines from USB-IF" (PDF). Retrieved 15 December 2018.
  6. ^ "USB Type-C Overview" (PDF). USB-IF. 20 October 2016. Archived from the original (PDF) on 20 December 2016.