The VC160A is a VGA-to-DVI Converter that lets you view VGA source data in DVI output display. It uses dual power sources - from the VGA port and a power adapter. The VC160A gets its power supply from the VGA port. However if your source device is not capable of supplying power, use the power adapter to connect the VC160A to a power source. The VC160A is compact, flexible and convenient to install - with no software required. It supports a wide range of resolutions for a more enjoyable quality video experience.