As the Universal Serial Bus (USB) approaches its 13th birthday, like other adolescents it's eager to start thinking and acting independently. For the USB, this means chucking the cable and connecting to a wide variety of printers, keyboards, hard drives and other office peripherals without wires.

The idea behind Wireless USB (WUSB) is simple and seductive. Instead of connecting directly to a computer, WUSB uses ultrawide band (UWB) technology to wirelessly connect a USB peripheral to the system.

UWB spreads the data out over a huge swath of spectrum, rather than blasting a powerful signal in a small portion of the spectrum, as is the case with cell phones, Bluetooth and Wi-Fi. Because the signal is just above the background-noise level, WUSB is able to move a good amount of data without interfering with any of your other wireless gear, like a Wi-Fi router, a cell phone or a Bluetooth headset. In the U.S., WUSB uses the range between 3.6 GHz and 6.0 GHz; there are plans to go as high as 10 GHz in the future to boost bandwidth.

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