Supermicro SuperServer 2049U-TR4 - Page 57

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Chapter 4: Motherboard Connections
Universal Serial Bus (USB) Ports
There are two USB 3.0 ports (USB2/3) on the I/O back panel. A USB header that supports two
USB 2.0 connections (USB0/1) are also located on the motherboard to provide front access
support. USB4, a Type A USB header, offers front USB 3.0 support. Connect USB cables to
these USB connections for USB access. Cables are not included.
Back Panel USB 2/3 (3.0)
Pin Denitions
Pin# Denition Pin# Denition
A1 VBUS B1 Power
A2 D- B2 USB_N
A3 D+ B3 USB_P
A4 GND B4 GND
A5 Stda_SSRX- B5 USB3_RN
A6 Stda_SSRX+ B6 USB3_RP
A7 GND B7 GND
A8 Stda_SSTX- B8 USB3_TN
A9 Stda_SSTX+ B9 USB3_TP
Front Panel USB 0/1 (2.0)
Pin Denitions
Pin# Denition Pin# Denition
1 VUBS 2 VUBS
3 USB_N 4 USB_N
5 USB_P 6 USB_P
7 Ground 8 Ground
9 Key 10 No Connection
Type A USB 4 (3.0)
Pin Denitions
Pin# Denition Pin# Denition
1 VBUS 5 SSRX-
2 USB_N 6 SSRX+
3 USB_P 7 GND
4 Ground 8 SSTX-
9 SSTX+