Does Raspberry Pi 3 support USB 3.0 drives ?


3 posts
by sanfx » Mon Jun 19, 2017 5:53 pm
Hi,

I am thinking to buy USB drive: http://amzn.to/2sKQCXT

to host a cloud storage based web app from this drive , its cost good amount I wanted to be sure if a USB drive that says USB 3.0 will work with Raspberry Pi 3 that doesnt have support for USB 3.0 ?

if it will work how much impact interms of slowness.
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by PeterO » Mon Jun 19, 2017 6:01 pm
That web page actually says it is backwards compatible with USB 2.0.

Any change in performance will depend on what is the actual limiting factor. That could be the storage medium, the USB interface, the application , the network ..........

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by W. H. Heydt » Mon Jun 19, 2017 6:03 pm
Define "support". The USB ports on all existing Pi are USB 2.0. USB is designed to be backwards compatible. You can attach a USB 3 flash drive to a USB 2 port on a Pi and it will work. You can attach a WD PiDrive, which has a native USB 3 interface, to a Pi USB 2 port and it will work. You can even attach a PiDrive with a USB-A to microUSB 3 cable to a Pi USB 2 port and it will work. Does that constitute "support"? Or are you looking to get the full performance you'd expect from a USB 3 device? If you are, you won't get it.

(Some of us really, really hope that some fine day there will be a Pi with USB 3. It *might* happen in a year or two with the Pi4, but there have been no hints, let alone announcements, in that direction.)
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