I'm planning to attach multiple portable 2.5" hard drives to a Raspberry Pi 2 Model B. These hard drives are powered each by a single USB cable, which is a problem, because the Pi does not provide enough power to run all of them.
My idea is to connect each drive to an external power source using an USB Y-cable.
Can I do it or will I run into problems? Did any one try that approach?
I got that idea, because I have seen other USB devices using such cables for their power supply.