nitro overclocking controller for zotac graphics cards control engine clock, shader clock memory clock, fan/temperature specifications interface - usb 2.0/1.1 device capabilities - gpu engine/core clock: +/- 5 mhz increments - shader clock: +/- 5 mhz increments - memory clock: +/- 5 mhz increments - fan control: +/- 5% speed / auto - temperature monitoring - graphics cards: zotac geforce series - operating system: windows xp/vista pacakage - nitro stand - driver disk - user manual - usb a to mini-b cable