All the USB 3.0 have failed after only using it for a month.Purchased it at a good price and if everything worked as it should it would be a great machine. I'm just using it for general purpose stuff, I have an 8tb hd on at all times and the usb ports have stopped recognizing it, I have to unplug then replug and even restart sometimes. Tried the HD on my laptop and no issues. Kind of sucks that I'm now stuck with this paperweight.Its also very big, there were no dimensions listed when I purchased, its about 18 wide and deep and about 5 inches thick.