This splitter cable enables a computer, which supports simultaneous digital & analogue video output via its DVI-I output port, to be connected to two separate monitors, e.g. one DVI TFT & one VGA CRT. Note: Before purchasing this cable, please ensure that your computer can output simultaneous digital & analogue signals from its DVI-I port. You may need to check your system documentation or contact your the computers manufacturer for clarification.