IBM eServer Cryptographic Coprocessor Security Module Model 4764-001 Security Policy http://csrc.nist.gov/cryptval/140-1/140sp/140sp661.pdf The 4764 Coprocessor is an updated version of the 4758. The above document details the differences between them.
If you recall, Wave lists the IBM 4758 PCI Cryptographic Coprocessor as an optional to the Embassy Key Management Server: http://www.wave.com/products/ekms.html
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