Ledger Nano S is a Bitcoin, Ethereum and Altcoins cryptocurrency hardware wallet used for storing cryptographic assets and processing digital payments. It connects to USB port of a computer and has a OLED display for reviewing transactions. It features multi-currency, multi-apps, and is FIDO certified U2F.
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- BitcoinBitcoin is a cryptocurrency and a digital payment system invented by an unknown programmer, or a group of programmers, under the name Satoshi Nakamoto. It was released as open-source software in 2009.
- EtherEther (ETH) is the cryptocurrency used on the Ethereum blockchain that can be used to operate smart contracts.