Supermicro SuperServer E403-9D-4C-FRDN13+ User Manual page 51

Universal Serial Bus (USB) Ports
The motherboard has two USB 3.0 Gen 1 ports (USB4/5) on the I/O back panel. There are
two USB 2.0 headers (USB0/1, USB2/3). These onboard headers can be used to provide
front side USB access with a cable (not included).
Unit Identifier Button/UID LED Indicator
A Unit Identifier (UID) LED is located on the motherboard. The UID LED provides easy
identification of a system unit that may be in need of service.
Note: UID can also be triggered via IPMI on the motherboard. For more information on IPMI,
please refer to the IPMI User's Guide posted on our website at
USB4/5 (USB 3.0 Type-A)
Pin Definitions
Pin# Definition Pin# Definition
1 VBUS 5 SSRX-
2 USB_N 6 SSRX+
3 USB_P 7 GND
4 GND 8 SSTX-
9 SSTX+
Front Panel USB 2.0 Header
Pin Definitions
Pin# Definition Pin# Definition
1 +5V 2 +5V
3 USB_PN2 4 USB_PN3
5 USB_PP2 6 USB_PP3
7 Ground 8 Ground
9 Key 10 NC
UID LED
Pin Definitions
Color Status
Blue: On Unit Identified
UID Button
Pin Definitions
Pin# Definition
1 Ground
2 Ground
3 Button In
4 Button In
51
Chapter 3: Motherboard Connections
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