The Nano S is a hardware wallet (a physical cryptocurrency wallet) marketed by the French company Ledger. The chip manufactured by Ledger makes it possible to secure your private keys offline, directly on your device, and to carry out transactions in your favourite cryptocurrencies via dedicated apps, available on most operating systems. It is currently the most efficient and secure storage system?
You can buy it in our physical space: Coinhouse, located at 35 Rue Du Caire, 75002, Paris, order it directly on Ledger's website.
You can find a tutorial installation (in French) provided by Bitconseil here.