The connection type refers to a port used to establish the connection between the monitor and computer in order to display the computer's output.

The display's resolution indicates how sharp, or realistic, your computer's images are. It refers to the number of pixels – tiny points of color – viewable on the rectangular screen, horizontally and vertically. The higher a display's resolution, the sharper and more realistic its images are.

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The refresh rate of a display is the number of times per second that the image refreshes on the screen. If you are a Pro gamer, higher refresh rates benefit gamers by making sure what you are seeing on screen matches what is happening on the computer.