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 (1200 and 2400 MB/s after encoding overhead). This specification has been renamed to reflect the evolution of "generations" of USB standards (ie: USB3.2Gen1 is "SuperSpeed", USB3.2Gen2 is also "SuperSpeed", but 2x faster, USB3.2Gen2x2 is also marketed as "SuperSpeed" but is 4x faster than 3.2Gen1). Nomenclature has been broadly criticized by both experts in the industry and the public at large for its confusing revisions not reasonably or appropriately reflecting the marketing messages that the guidelines prescribe in the standard specification, which is published at usb.org
