Figure 3: Backplate

1 - PS/2 mouse port (green). This port is for a PS/2 mouse.
2 - Video Graphics Adapter port. This port is for a VGA monitor or other VGA-compatible devices.
3 - LAN (RJ-45) port. This port allows connection to a Local Area Network (LAN) through a network hub.
4 - Line In port (light blue). This port connects a tape, CD, DVD player, or other audio sources. In a 5.1-channel configuration, the function of this port is Rear Speaker out.
5 - Line Out port (lime). This port connects to headphones or a speaker. In a 4-channel or 5.1-channel configuration, the function of this port is Front Speaker Out.
6 - Microphone port (pink). This port connects a microphone. In a 5.1-channel configuration, the function of this port is Bass/Center Speaker.
7 - USB 2.0 ports 1, 2, 3 and 4. These four 4-pin Universal Serial Bus (USB) ports are available for connecting USB 2.0 devices.
8 - PS/2 keyboard port (purple). This port is for a PS/2 keyboard.