Asus Z170-WS Manual page 46

6. Chassis intrusion connector (4-1 pin CHASSIS)
This connector is for a chassis-mounted intrusion detection sensor or switch. Connect
one end of the chassis intrusion sensor or switch cable to this connector. The chassis
intrusion sensor or switch sends a high-level signal to this connector when a chassis
component is removed or replaced. The signal is then generated as a chassis intrusion
event.
By default, the pin labeled "Chassis Signal" and "Ground" are shorted with a jumper
cap. Remove the jumper caps only when you intend to use the chassis intrusion
detection feature.
7. TPM connector (14-1 pin TPM)
This connector supports a Trusted Platform Module (TPM) system, which securely
store keys, digital certificates, passwords and data. A TPM system also helps enhance
network security, protect digital identities, and ensures platform integrity.
The TPM module is purchased separately.
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Chapter 1: Product Introduction