ASROCK D21G3D4I2-2T User Manual page 16

**There are two LEDs on each LAN port. Please refer to the table below for the LAN port
LED indications.
10G LAN Port (LAN3, LAN4) LED Indications
Activity / Link LED
Status
Off
Blinking Yellow
On
10
ACT/LINK LED
LAN Port
ACT/LINK LED
Description
No Link
Data Activity
Link
SPEED LED
SPEED LED
Speed LED
Status Description
Off 100Mbps connection or
no link
Yellow 1Gbps connection
Green 10Gbps connection