Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Wrong cord!

This card reader became extremely hot on it's first use and actually caused my computer to shut down a USB port due to too much power being pulled by the reader. That said, this was easily fixed by using a thicker cord of the same type. Those of you that have Blackberries, you can simply use the usb cord that came with your Blackberry and this unit will work fine. So all in all this unit gets barely 2 stars!