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3
B550M/ac
I/O Panel
No. Description No. Description
1 USB 2.0 Ports (USB_12)* 6 USB 3.2 Gen1 Ports (USB3_34)
2 LAN RJ-45 Port** 7 USB 3.2 Gen1 Ports (USB3_12)
3 Line In (Light Blue)*** 8 PS/2 Mouse/Keyboard Port
4 Front Speaker (Lime)*** 9 HDMI Port
5 Microphone (Pink)*** 10 Antenna Ports
* Please note that the USB_2 consumes auxiliary power (+5VSB) while the other USB ports consume DUAL
Power (+5VDUAL). e USB_2 is optimal for connecting the USB Type speaker and headset.
** ere are two LEDs on each LAN port. Please refer to the table below for the LAN port LED indications.
Activity / Link LED Speed LED
Status Description Status Description
O No Link O 10Mbps connection
Blinking Data Activity Orange 100Mbps connection
On Link Green 1Gbps connection
ACT/LINK LED
SPEED LED
LAN Port
6789
1 2 4
10
5
3
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