This splitter cable enables a computer, which supports simultaneous digital and analogue video output via its DVI-I output port, to be connected to two separate monitors, e.g. one DVI TFT and one VGA CRT. Use a DVI-I cable to connect the splitter cables DVI-I Female connector to the DVI-I output port on your monitor.Note:Before purchasing this cable, please ensure that your computer can output simultaneous digital and analogue signals from its DVI-I port. You may need to check your system documentation or contact your computer manufacturer for clarification. ADVI-I cableis required to connect to a DVI-I output port.We also recommend that, if possible, you use a monitor that supports automatic switching between analogue and digital video inputs, otherwise you will have to manually select the appropriate input on your monitor each time you switch between PCs.