Asus P9D-E/4L - Manual (Page 56)

2-36 Chapter 2: Hardware information
11. 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.
12. SATA DOM power connector (4-pin PWR3)
This 4-pin connector is for 5V power of a certain SATA DOM (Disk on Module) device when
using an appropriate cable.
• The SATA DOM power connector is for output power only. It has a maximum output
current of 1A.
• Ensure that the power of the SATA DOM device that you will use is less than 1A.