Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Ports die, one by one

Used for printer and digital cameras to have a hub within easy reach of the camera USB cable. Port 1 stopped working within a month and I thought it was a fluke. Port 2 worked for over a year and then suddenly died as well. Port 3 only lasted a week. The rest still work but I replaced the hub with another inexpensive one from Staples. The printer port never failed so maybe by not removing the cable constantly protected it. The failures are not mechanical (bad pins, cold solder joints, etc.), but are electronic. Rebooting the hub or computer made no difference. Been using hubs the same way since the late 90s without ever a problem. How can a hub be so unreliable?