If you're one of those users who continually laments the lack of expandable storage options from high-end smartphones or tablets, Seagate would like a word. The well-known hard drive manufacturer is releasing a somewhat unconventional model aimed squarely at mobile devices. The Seagate Wireless (that's the full name of the drive) is a 500GB hard drive with a built-in power supply and a Wi-Fi radio for accessing files on the go.

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