I use Trezor, Trezor One supports various types of digital currencies such as Bitcoin, Dash, Dogecoin, Zcash, Litecoin, Ethereum, and others. Of course this flexibility is widely used by users who trade more than one digital currency. The security form of Trezor One continues to be upgraded by collaborating with third parties namely Electrum and Copay. Please note that this Trezor One is not a software, application, or a Bitcoin Wallet wallet site, but is an electronic hardware.