Cuvex Personal Hardware Security Module (HSM) is a dedicated device for sovereign crypto self-custody, supporting offline seed encryption and PSBT signing. It ensures maximum privacy by operating fully offline, with no reliance on servers or telemetry. Built with security from first principles, Cuvex encrypts seed phrases offline using AES-256-GCM, preventing secrets from touching internet-connected systems. Its architecture supports manual entropy generation, enhancing key sovereignty. Sensitive data is never stored permanently; memory wipes automatically after each operation. Compatible with wallets like Ledger, Trezor, Coldcard, and Jade, it offers true control over your keys and privacy, eliminating backend dependencies and data correlation risks. Delivered in 14-16 days with all duties included, backed by a 24-month warranty.