Micro usb port not soldered on
346590
Dear sirs, once the case is opened up and the usb port is soldered on it works great. The ground was soldered, but the actual pins had no solder at all. Please take a look at this to correct the soldering station.
2272426
The +5V pin isn't connected for some reason. I can get it work if both device and host have their own power connection, like with an externally powered USB hub. But plugging a regular flash drive in won't work.
3712831
Can not hook up to keyboard as the micro usb port is misaligned. My son just opened this all excited to enjoy his gift over spring break.
933522
Had to fix an issues that the USB ports were not working. After looking around in the system and downloading a couple of drivers I fixed it.
4534640
The usb end of it is misfabricated, so it won't just 'turn on' when inserted, you have to find the sweet spot or it will just sit there.  Other than that it's fine.
1337990
I received it today but sad to see none of the ports working...  May be defective one!
2477305
Was a cheap, fast, easy fix for my child's broken micro USB port.

All the tools you need are included; Does not require special technical expertise, beyond patience.
1815555
Micro usb  does not fit into any of my phones.  not even other micro usb ports in random items I have.
2211065
OK, but be aware that the mini USB port will only work when connected to a power adapter or to a PC.  It will not work with other USB adapters or devices like a mouse, flash drive.
3675481
The micro-USB port alignment with the case is off, so you can't plug in the included USB cable to charge it.  It doesn't appear to be loose in the casing so it isn't shipping damage or something, just poor build quality, (and how exactly did this pass any sort of quality control?)  I'd return it, but I have an iPhone so I have lighting cables, and that port works fine.
4489988
'Micro USB' on the product is not a traditional male micro USB and so doesn't fit into the female micro USB port.
754446
Same sad story as everyone else.  Mine lasted about a year before breaking, but I also took really good care of it despite the "protective" rubber.  I think the guy in this video nailed it: the rubber housing isn't rigid enough to keep the circuit board from eventually splitting with the usb port.

https://www.youtube.com/watch?v=v1n6B5wO1WI
376315
Brand new unit with a defective USB port - computer doesn't recognize there's anything plugged in to the USB port. I've tried multiple cables, computers, and OSes. Amazon won't take a return. Hopefully CyberPower calls me back - if not, I guess I can dispute the charge.
2320011
The USB 2.0 ports worked for about 10 days then completely failed ( all 4). I have used Device Manager to uninstall and reinstall, I have disconnected and reconnected to motherboard and connected to another connection on mother board .Nothing helped. USB 3.0 and card readers are working but after reading reviews, I am worried that they will soon fail. Rosewill has given me an RMA but again due to reading the other reviews here I have strong doubts that it will fail also. On the other hand, there are enough positive reviews to take the chance that I might not get another defective unit so I will try.
2246674
it will not plug into the USB port on my computer.  I'm not an expert, but it appears that the circuit board is improperly mounted.
4900449
Mine worked fine for a few months, then suddenly the LED indicator wouldn't light.  I could see that if I pressed on the battery over the plug area the LED would light but had to mess with it to keep it on.  Turns out the power wire soldered on the plug had come loose, a simple matter of re soldering and its working great again.  I use the USB port to simultaneously charge my Android phone, or Kindle fire while keeping my spare battery charged.
4518607
the cord is heavy duty, the connections are not, red piece over mini usb end came off and left wires exposed