Hard drives store information magnetically on a spinning platter about 30% smaller than a CD. They also keep small amounts of data stored within RAM (Random Access Memory) chips found elsewhere in the casing. The only method of completely eliminating that information is to blast the hard drive with a magnetic field. The machines that do this are called Degaussers. Degaussed drives with one of our NSA listed degauser models are completely 100% secure. Whitaker Brothers offers not only extremely stringent first stage NSA approved top secret degaussing solutions, but also degaussing systems that are perfect for use in any commercial business. The only way to securely erase hard drive or other magnetic media is with an NSA listed degausser. NSA has listed several hard drive destroyers that are only listed as a second-stage solution. These degaussers will effectively prepare your drives for this Whether you have hard drives, cell phones, flash memory, or any sort of magnetic storage device with sensitive information on it – we have a product to fit your needs.