Do Trustwave SSL certificates only support 256 bit encryption?

All Trustwave SSL products are 100% backward compatible and support the key size as determined by the web server or browser, if the web server or browser can only negotiate 40, 56 or 128 bit, then it will use the highest level of encryption available for the session.

Trustwave SSL certificates are 256 bit encrypted to ensure that they are the highest possible for encryption.