The eMARK Super Mobile Keyboard from kimura metal Industrial Corporation is the world’s thinnest spill-resistant keyboard. ! The USB eMARK keyboard is just 1mm thick with Vinyl covering. The retraction USB cable makes it convenient to carry. The eMARK Super Mobile Keyboard measures 350×138×1~5mm, weighs 120g and will be available from late August for approximately 2,980 Yen($25).