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USB Superspeed Peripherals

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I working on a FX3 board layout with USB3 functionality. The product relies on high speed USB3 data transfers. I was wonder if instead of using a USB A/C type connectors, if I can just use a 9 pin header (1.27mm pitch or 2.54mm pitch) and just solder a usb 3 cable to it


1) Will this work?


2) if yes, will there be any transfer speed limitations?




Can I use a FFC (Flat flexible cable) connector as another option? Are there any design requirements that I should keep in mind when using such a connector for USB3 communication rather than a typical USB 3 A/B/C connector?




The point is to have a USB cable attached to the board directly instead of a connector.




Any help will be appreciated.





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