Here it will tell you if you are using a 32 or 64 bit version of windows. SIUDI DMX OUT DRIVERS FOR WINDOWS - The driver is included with the DVC installation setup.
Uploaded on, downloaded 412 times, receiving a 88/100 rating by 356 users. Intelligent Usb Dmx Interface Siudi9b Driver for Windows 7 32 bit, Windows 7 64 bit, Windows 10, 8, XP.