Dell UltraSharp 49 U4924DW 49" WQHD Ultrawide Curved Monitor - Manual (Page 29)

Right LED Amber or Green Speed indicator:
• Amber On - 2500/1000 Mbps
• Green On - 100 Mbps
• Off - 10 Mbps
Left LED Green Link / Activity indicator:
• Blinking - Activity on the port.
• Green On - Link is being established.
• Off - Link is not established.
About your monitor
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29
RJ45 Connector LED Status
NOTE: RJ45 cable is non in-box standard accessory.
LED Color Description