Which of these is NOT a common interface for connecting monitors to computers?

USB-C is primarily known as a versatile connector used for data transfer and charging, rather than as a dedicated video output interface for connecting monitors. Although USB-C can support video output through protocols like DisplayPort Alt Mode, its primary function in many applications is not strictly for monitor connections.

In contrast, HDMI, DisplayPort, and DVI are all specifically designed as video interfaces and are widely used for connecting monitors to computers. HDMI is commonly used in both consumer electronics and computers, DisplayPort is prevalent in the computer space, especially for higher resolutions and refresh rates, and DVI is an older standard that was heavily utilized before HDMI and DisplayPort became dominant. Thus, the distinction of USB-C highlights its versatility but also its less common use as a direct monitor connection compared to the other dedicated video interfaces.