There are two flavors of USB, 1 and 2. Two being faster. If you were trying to send a lot of data to an external drive, USB-2 would be preferable. Since data sent to a printer is a gazillion times faster (either 1 or 2) than the printer can print, USB-1 is plenty fine.
Look in Device Manager. Look at the Universal Serial Bus Controllers. If Enhanced Host Controller is listed, you have USB-2
dell laptop, vista OS, using HP C5280 all in one printer. i continually get message like "this device can perform faster / better when connected to some other USB port" on the laptop. so how do i tell which would be better. laptop's user manual doesn't readily identify the ports