IEI Technology IMBA-H420, User Manual

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IMBA-H420 ATX Motherboard
Page 59
3.3.2 External Keyboard/Mouse and USB 2.0 Combo Connectors
CN Label: K/M_USB1
CN Type:
PS2, 2 x USB 2.0 Type-A
CN Location:
See Figure 3-32
CN Pinouts:
See Table 3-27 and Table 3-28
There are two external USB 2.0 connectors on the IMBA-H420. The USB 2.0 connector
can be connected to a USB 2.0/1.1 device. PS2 is located on the mounting bracket for easy
connection to a keyboard or a PS2 mouse.
Figure 3-32: PS2, USB 2.0 Connector
USB
Pin Description Pin Description
1 GND 5 GND
2 U 6 U
3 USB_DATA- 7 USB_DATA-
4 VCC_USB3_56 8 VCC_USB3_56
Table 3-27: USB 2.0 Port Pinouts
Pin Description Pin Description
9 GND 12 VCC
10 KEYBOARD DATA 13 KEYBOARD
CLOCK
11 MOUSE DATA 14 MOUSE CLOCK
Table 3-28: PS2 Port Pinouts