ASROCK X99 Extreme6/ac Handbuch Seite 30

Serial Port Header
(9-pin COM1)
(see p.1 or p.2, No. 30)
TPM Header
(17-pin TPMS1)
(see p.1 or p.2, No. 32)
28
RRXD1
DDTR#1
DDSR#1
CCTS#1
1
RRI#1
RRTS#1
GND
TTXD1
DDCD#1
1
This COM1 header
supports a serial port
module.
This connector supports 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.