HP T640 - SFF - Ryzen Embedded R1505G 2. 4 GHz - 8 GB - Flash 32 GB - UK The HP t640 thin client helps keep your data safe across your workflows with built-in security. Refined security Encrypt data, protect firmware, and lock down access with an inherently secure thin client. Maximize what you can accomplish Empower your workforce with performance that conquers every task. Integrated TPM Leverage a highly secure, hardware-backed vault for storing and protecting authentication data.