Ellipal Cold Wallet 2.0 is a multi-cryptocurrency hardware wallet, which operates offline, eliminating the potential for any hacks. Users can store their private key in the cold wallet by importing or creating it. The private key will never touch the internet.
Trezor is an offline device used to store crypto private keys. Trezor is one of the top secure hardware wallets and works on Windows 8+, macOS, Android, and Linux. It is connected to a USB port of your computer via cable.