But that doesn’t mean manufacturers have to use these names. It suggests manufacturers market Gen 2 products as SuperSpeed USB 10 Gbps and Gen 2×2 as SuperSpeed USB 20 Gbps. Instead, it wants Gen 1 products marketed as SuperSpeed USB.
USB-IF doesn’t want consumers to see these terms. Manufacturers Should Refer to “SuperSpeed” Instead Amazon There’s a logic to the name, but it’s confusing, and you have to understand the hardware to realize it makes any sense. Physically, this has two 10 Gbps channel, so it literally is 2×2. The new 20 Gbps standard will be named USB 3.2 Gen 2×2, breaking the predictable pattern. Think of it as more wiring jammed into the same cable. USB products capable of 20 Gbps have two 10 Gbps channels. If you’re wondering how the cables are doubling their speed so quickly without changing size or connectors, it’s straight forward. That’s double the transfer speeds of USB 3.1 Gen 2. USB 3.2 will be capable of 20 Gbps speeds. Last September, the USB-IF detailed out new possible speeds for USB-C, and the beginnings of the USB 3.2 specification. USB 3.2 is Even Faster and More Confusing USB-IF To help differentiate the speeds, USB-IF also implemented logos, which manufacturer can only use by passing a certification to prove a cable matches the promised specs. But, as long as you remembered Gen 2 was better than Gen 1, you were good to go. The difference between the two was slightly confusing.
Full-duplex communication is exciting because that means information can be transferred and received at the same time. Technically, it accomplishes this by using 128b/132b encoding in a full-duplex communications mode. USB 3.1 Gen 2 is capable of 10 Gbps transfer speeds-that’s called SuperSpeed+. USB 3.1 Gen 1, originally known as USB 3.0, is capable of 5 Gbps transfer speeds-that’s called SuperSpeed. To further complicate things, the transfer speeds themselves received names.
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