Backwards compatibility doesn’t seem to be the issue. It’s that new devices designed today don’t and won’t support the full spec.
An ereader released today likely comes with usb 2.0 because that’s all it needs. They won’t spent the extra to give it a 40gbps chip with 10 gigabit Ethernet like the usb 4 spec defines.
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They should stop backward compatibility beyond a certain point. Just converge at USB 5. Any updates should be directly to 6 or whatever.
Backwards compatibility doesn’t seem to be the issue. It’s that new devices designed today don’t and won’t support the full spec.
An ereader released today likely comes with usb 2.0 because that’s all it needs. They won’t spent the extra to give it a 40gbps chip with 10 gigabit Ethernet like the usb 4 spec defines.