Supermicro SuperServer SYS-421GE-TNRT - Rear I;O Ports

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Chapter 4: Motherboard Connections
4.3 Rear I/O Ports
BMC_LAN/USB/VGA/COM Slot (JSLOT1)
The I/O riser connector, located at JSLOT1, is used to connect an I/O mezzanine board to
the motherboard. This connector provides dedicated BMC LAN, VGA, and COM port header
connections for rear side access. Refer to Chapter 1 for the location of JSLOT1.
Advanced I/O Module (AIOM) for Rear I/O Support (JAIOM1)
A Supermicro proprietary Advanced I/O Module (AIOM) connector used for a PCIe 5.0 x16
add-on module is located at JAIOM1. This AIOM connector is connected to CPU1 and provides
additional I/O support.
VGA Connections
There are two VGA connections in your system. The rear VGA connection is located on the
the motherboard I/O riser slot (JSLOT1) via a I/O mezzanine card. The front VGA header
is located on the Front Panel Control Module (JFP2) on the motherboard. These VGA
connections provide analog interface support between the computer and the video displays.
Universal Serial Bus (USB) 3.2 Header
A USB header that supports two USB 3.2 Gen1 ports (USB2/3) is located at J35 on the
motherboard. These USB ports can be used for USB support via USB cables (not included).
Rear I/O Panel USB 2/3 (3.2 Gen1)
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