Use the device in a way that suits you. USB-C plugs directly into your computer and comes with an optional USB-C to USB-A adaptor with cable included. For peace of mind, backups are made to a microSD card instantly and can be managed from the BitBoxApp. A secure chip is used for seed protection, brute-force prevention and device password hardening. Verify on the screen of the device what you are about to confirm, including all transaction details before signing.