tpm module is built into the motherboard
Solid Security Management for Protected Computing
ASUS protected computing starts with fingerprint authentication that grants strict access only to the designated owner. With one swipe, t he electronic imaging mechanism reads the fingerprint pattern from the live layer of skin , bypassing any common skin surface conditions that can impair the accuracy of the reading.
With ASUS Security Protect Manager, users can choose to setup multi-factor authentication requirements for data access of different security level. Both passwords and fingerprints can be used as the method of verification. Passwords are encrypted and stored in the hardware-based Trusted Platform Module (TPM) ensuring end-to-end security and avoid attacks by hackers looking to capture passwords and encryption keys for sensitive data.
http://www.asus.com/news_show.aspx?id=3992
i believe that it is used mainly with servers