15LAN controller. The Realtek RTL8201BL Ethernet is a single-chip solution for LAN on Motherboard (LOM) and Network Interface Card (NIC) applications. The Realtek RTL8201BL supports 100/10 Mbps data transfer rates.

16PS/2 mouse port. This green 6-pin connector is for a PS/2 mouse.

17Parallel port. This 25-pin port connects a parallel printer, a scanner, or other devices.

18RJ-45 port. This port allows connection to a Local Area Network (LAN) through a network hub.

19Line In jack. This Line In (light blue) jack connects a tape player or other audio sources. In 6-channel mode, the function of this jack becomes Bass/ Center.

20Line Out jack. This Line Out (lime) jack connects a headphone or a speaker. In 6-channel mode, the function of this jack becomes Front Speaker Out.

21Microphone jack. This Mic (pink) jack connects a microphone. In 6-channel mode, the function of this jack becomes Rear Speaker Out

22USB 2.0 ports 3 and 4. These two 4-pin Universal Serial Bus (USB) ports are available for connecting USB 2.0 devices.

23USB 2.0 ports 1 and 2. These two 4-pin Universal Serial Bus (USB) ports are available for connecting USB 2.0 devices.

24Serial port. This 9-pin COM1 port is for pointing devices or other serial devices.

25S/PDIF jack. This jack connects to external audio output devices.

26PS/2 keyboard port. This purple connector is for a PS/2 keyboard.

ASUS P4SDX motherboard user guide

1-5