https://www.ledgerwallet.com/apps/ethereum
このページの
Ledger Wallet Ethereum
Manage your accounts

SIMPLE INSTALLATION
Ledger Wallet Ethereum app is available for free on Chrome for Windows, Mac OS, Linux or Chrome OS. It runs flawlessly with
your Ledger device (Nano S & Blue).
これ以外にnanoってどこに書いてあるんでしょうか？