The XGI Volari Z7/Z9 series of graphics cards are part of a line of video adapters produced by XGI Technology, which was a company that developed graphics chips for desktop PCs in the early 2000s. The Volari Z7/Z9 cards were aimed at the consumer market, providing 3D acceleration and multimedia support. These cards were relatively low to mid-range in terms of performance compared to contemporaries like NVIDIA and ATI (now AMD) offerings.
The XGI Volari Z7/Z9s v10708 refers to a specific driver version (v10708) for the XGI Volari Z7/Z9 series graphics cards, intended to provide compatibility with Windows operating systems (usually Windows XP, Vista, or possibly early versions of Windows 7).