The 40-883 DVI test pattern generator provides over 20 of the most-often-used test patterns for calibration, testing and troubleshooting DVI-D or DVI-I signals. It is ideal for use with LCD monitors, PC monitors or projectors that are equipped with DVI-I or DVI-D inputs. Easy to use OSD menu allows you to select a variety of test patterns. Grey scale and multiburst. Requires 35-711A DVI to HDMI adapter sold separately. 5Vdc power supply included. Size: Length 5.75" x Width 3" x Height 1.25"