I'm trying to connect 3 HDD's to my Pi3.

They are 2x 3.5" and 1x 2.5", all powered with a external power supply: https://www.inateck.com/inateck-ua1001-usb-3-0-to-ide-sata-adapter.html

It works if I only connect one drive, but as soon as I add a second one they stop working. They are all 1TB and perfectly work on my windows machine or if I disconnect the other ones.

Is there a way to tell the Pi not to power the Drives throught the USB?

Thank you in advance.


1 Answer 1


Use a Y-type USB cable


Power one male jack from a 3A power supply, another goes into the Pi. Expect 1-1.5A per drive to operate without problems. If you can’t readily or cheaply get such a high current supply for 5V, get a nice buck converter and use it with a laptop power brick.


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