Instruct: Classify the given Amazon review as either positive or negative.
Query: Can't use 2nd USB port on Powerbooks

This device has serious design problems when used with a powerbook G4. Since the powerbook's USB ports are next to each other and this Iogear device is so round at the sides, you cannot use your other USB port. This means you will either need to purchase a USB dongle or sacrifice the port. Also, I was not able to get the device to work on Mac os X. The system would not recognize it.