Keycard Launches Pre-Sale for Shell: Open Hardware Wallet with Revolutionary Modularity

Keycard announces the pre-sale launch of ‘Shell,’ a revolutionary hardware wallet that prioritizes openness and security. Designed to be modular, transparent, and dependable, Shell allows users to effortlessly manage multiple wallets through interchangeable smart cards called Keycards for enhanced convenience and safety. This innovative approach offers unprecedented levels of control and ownership over digital assets.