Asus Z87-C - Manual (Page 39)

1-31 Chapter 1: Product introduction
3. Intel ® Z87 Serial ATA 6.0 Gb/s connectors (7-pin SATA6G_1-6 [yellow])
These connectors connect to Serial ATA 6.0 Gb/s hard disk drives via Serial ATA 6.0
Gb/s signal cables.
If you installed Serial ATA hard disk drives, you can create a RAID 0, 1, 5, and 10
configuration with the Intel ® Rapid Storage Technology through the onboard Intel ® Z87
chipset.
4. TPM connector (20-1 pin TPM)
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.
TPM module is purchased separately.