This device is one of the most popular when it comes to hardware wallets for Bitcoin or Ethereum. Many people use this device, because it is a cheap device and does its job. Ledger is also a very known company in the crypto currency world, and you can be assured that their devices work properly. The Ledger Nano S is recommended, because it can store many types of crypto currencies, and it is very easy to set up and use. Ledger has made some Chrome extensions, which make it very easy to use the device for sending and/or receiving payments in crypto. There is a little display on the USB-flash-drive-looking device. It displays your recovery phrase during the first setup, and it will also display and make you confirm transactions you have made through the Chrome extensions. The fact that it is shipping from EU and not US makes this a very attractive product for European users, because they would have to pay import duties, if it was shipped from the US.