What is the maximum length usb cable I can use to connect a 2tb external hard drive to an airport extreme?

I live in tornado alley and would like to place my hard drive in a secure location in the basement, leaving the router upstairs. The approximate run needed to do this would be 20 feet. I am aware of the possibility of the cable length causing a response delay in peripherals, but not sure if the airport extreme will experience a problem with that.
I currently am using an ipod touch and a PC, sony PS3, and Wii, but plan to add more Apple products within the year.

QA AirPort Extreme Base Station

QA AirPort Extreme Base Station

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1 Answer from the Community

  • Answer

    The maximum cable length for USB 2.0 is 16' (5m). In theory, you can extend this by daisy-chaining powered USB hubs every 16' (5m) or less, but your mileage may vary (ie don't be surprised if problems occur).