特殊加密的SD卡读卡器，可以存储多私钥地址，可在二维码与明文两者之间切换冷存储方式，外壳坚固耐用。
Long term plans: microSD card reader with device specific encryption. Able to store multiple private addresses for cold storage and toggle between QR display and plaintext. Weather resistant enclosure for safe and rugged storage.
http://imgur.com/gallery/Mnw51
