Colorful C.H110M-K D3 PLUS V20 User Manual page 7

Parts
PS/2 Mouse and Keyboard Connector
LAN Jack
Lie-In(Blue)
Line Out(Green)
Side R/L(Gray)
VGA
DVI
USB Ports
2.7.5.USB 3.0 connectors
This connector is for USB 3.0 devices.
2.7.6.USB2.0 connectors
These connectors are for USB 2.0 ports. Connect the USB module cable to any of these connectors, then install the module
to a slot opening at the back of the system chassis. These USB connectors comply with the USB 2.0 specification that
supports up to 480Mbps connection speed.
Use
This connector is for a PS/2 mouse and Keyboard.
The standard RJ-45 jack is for connection to single Local Area Network (LAN).
You can connect a network cable to it.
Used for external CD player, tape player or other audio devices.
This connector for speakers or headphones.
Side surround speakers connector
Onboard VGA, connect to Monitor
Onboard DVI port, connect to DVI Monitor
These connectors are for attaching USB devices such as keyboard, mouse,
or other USB-compatible devices