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Shredder for hard drives
All the actions that have been made on the computer, from the time of first loading can theoretically be tracked. To avoid the possibility of recovery was coined Hard Disk crusher, which deforms the hard drive for approximately 10 seconds, so any information from it is not snimesh.
In case of power failure, the device can operate after its charge manually. And all would be nothing if it were not for the price - $ 11 500. For the money somehow easier to take a hammer and a hard drive to cut yourself.