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. NOTE: The blue part under the VGA port allows the VGA port to sit higher on the back I/O.
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.
5 - Line Out port (lime). This port connects to headphones or a speaker. In 4-channel, 6-channel, and 8-channel mode, the function of this port becomes Front Speakers Out.
6 - Microphone port (pink). This port connects a microphone.
7 - USB 2.0 ports 1, 2, 3 and 4. These two 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.