Asus P9D-V User Manual page 48

8. Serial port connector (10-1 pin COM2)
The connector is for the serial COM port. Connect the serial port module cable to the
connector, then install the serial port module to an open slot at the back of the system
chassis.
9. Trusted Platform Module connector (20-1 pin TPM1)
This connector supports a Trusted Platform Module (TPM) system, which can securely
store keys, digital certificates, passwords, and data. A TPM system also helps enhance
network security, protects digital identities, and ensures platform integrity.
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