Western Digital’s ultimate My Passport Studio tough drives underline a customizable e-ink display. Inspired by a Amazon Kindle, a arrangement shade keeps a interpretation on arrangement even when a energy supply is cut off. FYI, any HDDs is pre-formatted for Macs only, though we can simply run them on a Personal Computer after a reformat. You will additionally need to re-install a WD e-ink program to customize a outward display. The 320GB indication is labelled during $150, whilst a 640GB indication retails for $200. [Western Digital]