[url=http://www.tomshardware.com/news/Transcend-LRDIMM-Memory-RAM,21444.html#xtor=RSS-998]Source (Tom's Hardware)[/url]
The catch is that your motherboard has to have 24 RAM slots...still though.
Who on earth needs this much RAM????
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RAM Discs. Imagine, starting windows and opening every program, in under 3 seconds.