Encrypted hard drive enclosure for $139

[Declan McCullagh]

http://fwdepot.com/thestore/product_info.php?products_id=331
http://www.del trontech.com/Enclosure/E3S/E3S.htm

Interesting, but I'm confused about the "Real-time 64-bit/ 40-bit DES (Data Encryption Standard) Encryption/ Decryption with throughput of 712Mbit/ sec"

Does anyone know about a stronger version of a similar device?

-Declan