DVI-D stands for Digital Visual Interface - Digital, a type of video connection used to transmit high-quality digital video signals. It is commonly found on computer monitors, graphics cards, and other display devices. DVI-D supports resolutions up to 1920x1200 and is designed to provide a clear image without the interference that can occur with analog signals. Unlike its counterpart, DVI-I, which supports both digital and analog signals, DVI-D only transmits digital data. This makes it ideal for modern displays that require a pure digital connection. DVI-D connectors come in single-link and dual-link varieties, with dual-link allowing for higher resolutions and refresh rates.