The IBM PCI Cryptographic Accelerator feature is designed for maximum Secure Socket Layer (SSL) acceleration rather than for specialized financial applications or for secure long-term storage of keys and secrets. As a result, it does not need the tamper responding design of the PCI Cryptographic Coprocessor (PCICC). In an IBM zSeries 900 server, the PCICA feature can support over 2000 SSL handshakes per second.Unlike the IBM 4758 PCI Cryptographic Coprocessor, there is no microprocessor subsystem (CPU, memory, and so on). The overall operation control, including command decoding, is implemented in the hardware.