User Manual
Chapter 4: Motherboard information
4-18
4.4 Internal connectors
1. 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.
2. USB 2.0 connectors (10-1 pin USB1112)
These connectors are for USB 2.0 ports. Connect the USB module cables to
connectors USB78 and USB910, then install the modules to a slot opening at the back
of the system chassis. These USB connectors comply with USB 2.0 speciî…¿cation that
supports up to 480 Mbps connection speed.