Product Overview 1-21
USB-C (Power/Data)
The USB Type C connector (Molex 105450-0101-SD) serves as the primary connection
between the Motherboard and the I/O Board. The connector is rated at 30V withstand
voltage and a current carrying capacity of up to 5A. The port is a non-standard USB-C
port and is only intended to connect the Motherboard to the I/O Board. The port
provides 24V and up to 4A current directly to the Motherboard from the I/O Board
without Power Delivery (PD) handshaking.
Signal Pin Pin Signal
GND A1 B12 GND
USB3.0 TX1+ A2 B11 USB3.0 RX1+
USB3.0 TX1– A3 B10 USB3.0 RX1–
+V (24V) A4 B9 +V (24V)
CC1 (GPIO1) A5 B8 SBU2
USB2.0 A D+ A6 B7 USB2.0 BD–
USB2.0 A D– A7 B6 USB2.0 BD+
SBU1 A8 B5 CC2 (GPIO2)
+V (24V) A9 B4 +V (24V)
Display Port A10 B3 Display Port
Display Port A11 B2 Display Port
GND A12 B1 GND
Since reversibility is not required, the CC1 and CC2 signals will be re-purposed for the
following functions:
Signal Pin Function
CC1 (GPIO1) A5 Power Status from Motherboard
CC2 (GPIO2) B5 Display Port Hot Plug Detect
The port does not require an MUX, but requires independent Redrivers on the USB 3.0
and DP signals to support long cable lengths.
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