Scaler allows to view virtually any standard analog format television video source in high resolution on a PC monitor. It has both composite video and S-Video inputs that can be up converted to XGA, SXGA or UXGA outputs. It's intended to be used with an NTSC 3.58 or PAL analog video signal originating from a VCR, DVD or video game. The output resolution is switch selectable as desired. Weighing less than a half pound and housed in a durable, ergonomically friendly enclosure, this product can be expected to provide years of trouble free service.