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I do data recovery. I have a RAID issue, and I basically need to have 7 USB devices plugged into one laptop. I got them all recognized, but the issue is that windows keeps disconnecting them.. and 2 seconds later, they're back.

How can I stop my USB devices from disconnecting?

All devices are powered. Some are plugged into the laptop itself, some are one a hub, but each drive has its own power supply and doesn't draw any power from the laptop/hub.

1 Answers1

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You probably have a power issue. Try connecting a few USB devices through a powered USB hub with an auxiliary/external power supply. You may even have to use several powered USB hubs if you run into this situation mentioned by Wikipedia:

Some self-powered hubs do not supply enough power to drive a 500mA load on every port. For example, many seven port hubs have a 1A power supply, when in fact seven ports could draw a maximum of 7 x 0.5 = 3.5A, plus power for the hub itself. Designers assume the user will most likely connect many low power devices and only one or two requiring a full 500mA.

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