Ocp Bus Connector (Ocp_Bus1); Hard Disk Activity Led Connector (4-Pin Hdled1) - Asus RS720A-E12 Series User Manual

16.

OCP bus connector (OCP_BUS1)

This connector connects the OCP 3.0 Riser card NCSI signals to the motherboard
17.

Hard Disk Activity LED connector (4-pin HDLED1)

This LED connector is for the storage add-on card cable connected to the SATA or
SAS add-on card. The read or write activities of any device connected to the SATA or
SAS add-on card causes the front panel LED to light up.
ASUS RS720A-E12 Series 4-23