Ledger Nano S is a cold storage or hardware wallet to store and make transactions in cryptocurrencies like Bitcoin, Ethereum, and other altcoins. It's powered by USB connectivity. It's the most secure way to store crypto assets because it's not connected to the internet unlike digital wallets, that's why it calls cold storage, it's almost impossible to hack.
To date, Bitcoin can have only about 4.6-7 transactions per second while Visa average of 24,000, and its peak capacity of around 50,000 transactions per second. But how Lightning Network can help BTC or other cryptocurrencies to beat the record promising to process around 1 million transactions per second. Read on. houston digital agency