G-RAID USB 3.0 keep ejecting by itself


I have a 4TB G-RAID USB 3.0 attached to a Mac Pro (late 2013), Mac OS 10.12.3.

I am trying to use the drive as my Time Machine backup drive.

The drive keeps ejecting itself about 5 minutes into backing up. I tried a different USB cable, reformatted the drive, but the problem keeps happening.

Any help is appreciated.


Make sure to check your power adapter and that it is 12v and 4a. If you verify that it is and this is still happening then it would be a hardware related issue to the drive. You would need to get a replacement drive.

You can generate an RMA for a replacement on our website here: RMA