Cable length should be ≤2 m for Gen 1 or ≤1 m for Gen 2. They are electronically marked cables that contain a chip with an ID function based on the configuration channel and vendor-defined messages (VDM) from the USB Power Delivery 2.0 specification. USB 3.1 cables are considered full-featured USB-C cables. Receptacles are found on devices and adapters. Two genders (kinds) of connectors exist, male (plug) and female (receptacle). The 24-pin double-sided connector is slightly larger than the micro-B connector, with a USB-C port measuring 8.4 millimetres (0.33 in) wide, 2.6 millimetres (0.10 in) high, and 6.65 millimetres (0.262 in) deep. USB-C port (receptacle) on a mobile phone USB Type-C and USB-C are trademarks of USB Implementers Forum.

USB-C cables interconnect hosts and devices, replacing various other electrical cables and connectors, including USB-A and USB-B, HDMI, DisplayPort, and 3.5 mm audio jacks. USB4, released in 2019, is the first USB transfer protocol standard that is only available via USB-C. 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 (~1.2 and 2.5 GB/s). USB 3.2, released in September 2017, replaces the USB 3.1 standard. Ī 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. In July 2016, it was adopted by the IEC as 'IEC 6'.

It was developed at roughly the same time as the USB 3.1 specification. The USB Type-C Specification 1.0 was published by the USB Implementers Forum (USB-IF) and was finalized in August 2014. A notable feature of the USB-C connector is its rotational symmetry a plug may be inserted into a receptacle in either orientation. The designation C refers only to the connector's physical configuration or form factor and should not be confused with the connector's specific capabilities, which are designated by its transfer specifications (such as USB 3.2). USB-C (properly known as USB Type-C commonly known as just Type-C) is a 24-pin USB connector system with a rotationally symmetrical connector.

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