The PRS-300 is a budget e-reader from Sony with a 5" E Ink display,512Mb internal memory, USB 2.0 and no wireless connections.

Sony PRS-300 and PRS-600 photoSony PRS-300 and PRS-600 photo

The PRS-300 is available now for 199$.

E Ink display info: 
5" E Ink
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ynvisible ink kit - create your own electrochrommic printed displaysynvisible ink kit - create your own electrochrommic printed displays