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I was wondering if I should think about installing the OS on a USB 3.0 stick and using the USB 3.0 port rather than the Class 10 Micro SD card to enhance read/write speeds.

Is there a performance increase using the USB 3 interface rather than the SD card?

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    depends on the USB 3.0 stick - they're not all made equal!! – Jaromanda X Jul 2 '19 at 11:38
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    by the way, you can't boot from USB on the pi 4 - not yet anyway – Jaromanda X Jul 4 '19 at 8:37
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The fastest SD card, equipped with the UHS-II interface, offers a reading speed of 312 MB/s, less than half the USB 3.0 standard (640 MB/s).

After, the reading speed may vary from one key to another...

That's why I've chose a usb3 too :)

Life is increased on usb 3!

| improve this answer | |
  • Comparing maximum speeds of interfaces is rather pointless. Good luck finding a USB stick which actually provides that speed. – Dmitry Grigoryev Sep 12 '19 at 8:43

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