What you'll sacrifice is throughput two products with different USB capabilities will operate at the older's transfer speed. USB 3.2 devices are backwards compatible with all existing USB products. One thing you need not worry about is a newer USB product not working with an older device. (Whether vendors follow this suggestion or use the above terms remains to be seen and requires you to know both sets of terms.) The marketing terms you'll see for USB 3.2 devices are: SuperSpeed USB, SuperSpeed USB 10Gbps and SuperSpeed USB 20Gbps. That's because there are separate marketing terms for each of the three USB 3.2 versions, which the USB-IF encourages vendors to use for their packaging. If you're on the lookout for the above USB 3.2 Gen 1 and 2 names when attempting to create the best possible connection between your devices, your work is not done. Then there's USB 3.0, which is now called USB 3.2 Gen 1. (The 2x2 means it's the second generation and has two 10Gbps lanes to achieve its maximum throughput of 20Gbps.) The older USB 3.1 has a single 10Gbps channel and is called USB 3.2 Gen 2. The newest, fastest version of USB 3.2 offers a max speed of 20Gbps and is called USB 3.2 Gen 2x2. We now find ourselves in a similar spot with USB 3.2. When USB 3.1 showed up, USB 3.0 suddenly became USB 3.1 Gen 1, and the newer standard received the label USB 3.1 Gen 2. USB 1.0, 1.1 and 1.2 were absorbed into USB 2.0. This isn't the first time USB names have shifted.
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