For using with older desktop computer with the older VGA out (with your VGA cable) to adapt to a monitor using the DVI connector found on many Mac displays OR for connecting your DVI-A desktop or laptop computer to a VGA monitor or projector Molded Connector.
DVI-I (Analog and Digital): The port carries the analog signal DVI-I ANALOG and DIGITAL. The signals sent by the port are different from VGA and we need a convertor for connecting a VGA monitor to DVI-I port.