Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Fails to work on Apple Powerbook G4

Had this plugged into one of the two inputs in a Mac Powerbook. Plugged into this was a mouse and a printer. Neither drew power. Printer worked OK but the mouse turned on and off every few seconds, making work near impossible. It's like this thing has a fast switch inside switching between the inputs live/not live. But not fast enough for the mouse to stay connected to the Mac.I'll buy a different kind and see what happens.