The biggest challenge to mass acceptance of cryptocurrencies, before mass adoption will ever be possible, is in making them easy to both secure and spend. Current hardware wallets, like the popular Ledger Nano S or Trezor One, are a great first step, but they’re simply too expensive – which is where Coinkite’s Coldcard comes in.
“Cheap & Ultra Secure”
The Coldcard is a very different device to most hardware wallets. Its design is based around a calculator layout, with a small single-colour OLED display to the upper-left and a 12-key pad dominating
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