2 ms·
USB went from 1.0, to 1.1, to 2.0, to 3.0. 3.0 got renamed 3.1 Gen 1, and 3.1 Gen 2 got introduced. Then 3.2 came around, which renamed 3.1 Gen 2 into 3.2 Gen 2
by SAI_Peregrinus 5y ago
USB went from 1.0, to 1.1, to 2.0, to 3.0. 3.0 got renamed 3.1 Gen 1, and 3.1 Gen 2 got introduced. Then 3.2 came around, which renamed 3.1 Gen 2 into 3.2 Gen 2x1, and introduced 3.2 Gen 1x2 and 3.2 Gen 2x2. USB 4.0 introduces USB 4.0 Gen 2x2 and USB 4.0 Gen 3x2.
This is ignoring the battery charging, alternate modes, etc. Just the main USB versions.