1
5
Back Panel of P55A-S
Back Panel of P55A
USB Ports
LAN Port
PS/2 Keyboard/Mouse Port
Optical
S/PDIF Out
1
7
Audio PortsUSB Ports
Line Out
Microphone In
Subwoofer
Rear Speaker
Side Speaker
Line In
2
2
64
External SATA
Ports
USB Ports
LAN Port
PS/2 Keyboard/Mouse Port
Optical
S/PDIF Out
1 7
Audio PortsUSB Ports
Line Out
Microphone In
Subwoofer
Rear Speaker
Side Speaker
Line In
5
2
2
64
Clear CMOS
Button
3
1-3 Back Panel Connectors
1. PS/2 Keyboard/Mouse Port
Use the upper port (purple) to connect a PS/2 keyboard or a PS/2 mouse.
2. USB Ports
The USB port supports the USB 2.0/1.1 specication. Use this port for USB devices such as an
USB keyboard/mouse, USB printer, USB ash drive and etc.
3. Clear CMOS Button(Only for P55A-S)
Onboard Clear CMOS button is located directly on the motherboard PCB, so you can easily clear
CMOS after failed overclocking attempts.