It's a PCI board that is used with the Transas Navisailor Software (Navisailor
3000, 2500, 2400, Navifisher etc..) It is takes the video from your radar
(adaptable to many types and brands) and overlays it on top of the Transas
software.

Very expensive and geared toward the Mega yacht and shipping industry.
However Nobeltec has a less expensive box that does the same thing with there
software. Check it out

Regrds,
Brian