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Can two SuperSpeed hosts connect directly to each other?

April 26, 2017Connect directly hosts superspeed

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Can two SuperSpeed hosts connect directly to each other?

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USB 3.0 defines a new crossover cable with a Standard A plug on each end. The cable does not include VBUS, D+, or D- wires. The SuperSpeed transmit and receive wires are cross-connected to route each output to its corresponding input. The specification says the cable is intended for OS debugging and other host-to-host applications. The cable won’t hurt USB 2.0 hosts because the only line that connects on these hosts is GND. USB 2.0 does not have a legal host-to-host cable except for bridge cables that contain two device controllers with a common buffer.