Supermicro SuperServer E302 Series User Manual page 39

Universal Serial Bus (USB) Ports
There are two USB 3.0 ports (USB4/5) on the I/O back panel. The motherboard also has
two front access USB 2.0 headers (USB0/1, USB2/3). The onboard headers can be used to
provide front side USB access with a cable (not included).
Back Panel USB 4/5 (3.0)
Pin Definitions
Pin# Definition
A1 VBUS
A2 D-
A3 D+
A4 GND
A5 Stda_SSRX-
A6 Stda_SSRX+
A7 GND
A8 Stda_SSTX-
A9 Stda_SSTX+
Unit Identifier Button/UID LED Indicator
A Unit Identifier (UID) button and an LED indicator are located on the motherboard. The UID
button is located next to the VGA port on the back panel. The UID LED is located at LED2,
next to the UID button. When you press the UID button, the UID LED will be turned on.
Press the UID button again to turn off the LED indicator. The LED indicator 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
support/manuals/.
UID Button
Pin Definitions
Pin# Definition
1 Ground
2 Ground
3 Button In
4 Button In
Pin# Definition
B1 Power
B2 USB_N
B3 USB_P
B4 GND
B5 USB3_RN
B6 USB3_RP
B7 GND
B8 USB3_TN
B9 USB3_TP
39
Chapter 4: Motherboard Connections
Front Panel USB 0/1, 2/3 (2.0)
Pin Definitions
Pin# Definition Pin# Definition
1 +5V 2 +5V
3 USB_N 4 USB_N
5 USB_P 6 USB_P
7 Ground 8 Ground
9 Key 10 NC
https://www.supermicro.com/
UID LED
Pin Definitions
Color Status
Blue: On Unit Identified