On all current Toshiba copiers with HDD, 128 Bit AES Encryption is offered standard but it has to be turned on by a Service Code. The cost is that it somewhat slows down the copier's performance. In my experience, 128 Bit is rarely turned on when I inform the customer of the trade off. Maybe I should just turn it on in the future and not tell the customer.
The optional DataOverwrite kit is very rarely purchased by small Commerical customers but often by Gov't & Schools.