Thales nShield Solo, part of the nCipher product range, is a family of embedded, general-purpose HSMs for servers and appliances that safeguard encryption and digital signing keys and that can optionally run custom applications on the module to protect data in use. Previously known simply as &quot;nShield&quot;, nShield Solo protects encryption and signing keys on servers in a highly secure, tamper-resistant hardware module. It is compatible with platforms offering PCI, PCI-X and PCI Express interfaces.