SOYO SY-5EHM Super 7 User's Manual & Technical Reference page 31

Hardware Setup
PS/2 Mouse
Attach the mouse cable to the 6-pin male PS/2 mouse connector on
the Mainboard to enable PS/2 mouse function.
Universal Serial Bus (USB)
This mainboard provides a dual-row 10-pin header (one pin is empty)
to support two USB ports for your additional devices. Attach the
USB cable (Optional) to this header as shown in the diagram below.
The USB cable has two USB ports mounted on a bracket.
PS/2 Mouse
Connector
1
5
Connector
PRT 1
COM 2
1
1
4
9
USB
1
COM 1
PS/2 Mouse
Connector
USB
KB
KB
KB
Connector
PRT 1 COM 2
1
1
1
COM 1
28
SY-5EHM/5EH5