Prokey is a digital wallet provider specializing in secure hardware wallets designed to store and manage cryptocurrencies. Their primary product, the Prokey Optimum, offers users a convenient and safe way to manage various cryptocurrencies through a unified platform. The device emphasizes security, combining robust features such as offline storage and backup capabilities to protect users' digital assets from online threats. The Prokey website, available at https://prokey.io/, provides detailed information about their products, including technical specifications, instructional guides, and customer support resources to help users navigate the complexities of cryptocurrency management efficiently.