Check the device's manual or user guide for details on the functions of each port on the projector or interactive display. Not every port can be used as a video input.
| USB is usually not a video input. Check the device’s manual or user guide to determine how USB can be used. | |
| HDMI uses a digital signal. It can carry audio and video in a single cable. There are several versions of HDMI supporting different levels of video quality and copy protection. It is one of the most common video ports currently in use. | |
| VGA / RGB / VESA / D-SUB / DE-15 uses an analog signal. It only carries video, not audio. It is typically found on older computers and monitors. | |
| Composite Video (yellow video input) uses an analog signal. The connector type is typically RCA. It is called “composite” because all video information is carried by a single signal. It is typically paired with additional red and white connectors, which carry audio. | |
| Component Video (Y/Pb/Pr, green/blue/red video input) uses an analog signal. The connector type is typically RCA. It is called “component” because the video information is split into three component signals. They are typically paired with additional red and white connectors, which carry audio. Be sure to check which red connector is which, when installing. | |
| DVI can use analog or digital signals. The type of signal supported depends on the device in use. It is typically found on older computers and monitors. | |
| M1-D/A can use analog or digital signals. The type of signal supported depends on the device in use. This port is similar to DVI, but larger. It is no longer used, but can be found on some older projectors. | |
| DisplayPort is a versatile connector, but its compatibility is limited by the devices in use. It is not as common as HDMI, and it is usually only found on computers, monitors, and some projectors. DisplayPort input on monitors and projectors works best when the computer has a direct DisplayPort (left) or miniDP (right) output. Using a computer’s DisplayPort output with a monitor or projector without DisplayPort input will require an adapter. Check with the computer manufacturer to verify adapter compatibility. |
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