Matrox DualHead2Go

This external multi-display upgrade is a compact box which sits outside your system and connects to the VGA output of compatible notebook or desktop computers. The multi-display configuration delivered by DualHead2Go Digital Edition permits working with multiple full-screen documents or applications simultaneously—eliminating the need to constantly open, close, or minimize applications. It is the ideal solution for professional and business users looking for a simple and cost-effective solution to quickly increase their productivity. Through patent-pending technology, the operating system detects the DualHead2Go Digital Edition as an ultra-widescreen monitor which is then split into two or more standard resolutions compatible with the attached displays. More infomation : http://www.persoft.co.th/