Asus TS100-E7/PI4 User Manual
Page 48
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Chapter 3: Motherboard information
3-8
2. 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.
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