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Note: It is now 2020, and this answer was written in 2011. At the time, the OP was probably referring to DisplayPort carried over the standard DisplayPort connector. At a basic level, DisplayPort works just like any other audio and video data connection. You plug one end of the cable into your device, be it a laptop, desktop computer, or external graphics card, and the other into your display. The devices may detect one another and configure things automatically, but you may need to use a remote or the controls on your monitor to manually select the DisplayPort input. It's also possible you'll need to manually set the correct resolution and refresh rate for your display(s). At its core, DisplayPort is a digital interface designed to deliver video and audio over a singular cable. Much like HDMI, it can connect a monitor to a video source, like a graphics card or laptop video output , and deliver the video and sound that it's outputting to the display screen.
At the same time, if you are on a Windows system and have more than one DisplayPort-compatible monitor, you can also use the MST mode to daisy chain both the monitors. DisplayPort over USB-C enables the USB-C connector and cable to support the DisplayPort interface for audio/video (AV) transport capability. DisplayPort technology may typically be found in higher-end devices, acting as a more premium connection type to HDMI's mainstream solution. But even as that competing cable standard evolves, DisplayPort is still leaps and bounds ahead in both resolution and refresh rate support, as well as features. Improved user experience with augmented/virtual reality (AR/VR) displays, including support for 4K-and-beyond VR resolutions. Again, it’s a versatile cable and works on macOS and Windows systems. CableMatters claims that this one can support 8K resolution at 60Hz. However, you can rest assured that this DisplayPort cable works perfectly in 4K resolution at 60Hz.The good thing about the above setup is that you needn’t use any adapters. You need to connect both your laptop and the monitor via the said cable, and that’s about it. This arrangement makes it extremely easy to switch between the laptop-only mode and the conventional monitor setup. What’s more, these wires are extremely portable and can just be wound up and carried along with your laptop. Sounds great, right? Also, see this presentation from VESA's Craig Wiley at the IEEE International Conference on Consumer Electronics for a relevant quote: Maximum link rate to up to 20 Gbps/lane and features more efficient 128b/132b channel coding, delivering a maximum payload of 77.37 Gbps Will DisplayPort over USB-C provide the same level of performance and features as the standard DisplayPort connection?
The best part is that it’s available in three lengths – 3ft, 6ft, and 10ft. This gives you the flexibility of setting up your monitor is as per your convenience and preference.For most users, however, the only real difference is size and price. Active DisplayPort converters tend to be larger and more expensive because they include additional, in-adapter signal processing chips, whereas passive adapters utilize DP++ to do the heavy lifting for them and are more of a mere physical interface converter. Active DisplayPort adapters are necessary for an Eyefinity multi-display setup where you’re converting to more than 2 monitors. How many Hz does DisplayPort support? There aren’t a great number of DisplayPort 2.1 compatible displays or devices at the time of writing. AMD launched its RX 7000 series graphics cards at the end of 2022, and they are the only source device with a DisplayPort 2.1 connection for now. The only two DisplayPort 2.1 displays yet announced are Asus’ Swift PG32UQXR monitor, and Samsung’s next-generation Odyssey Neo G9 49-inch ultrawide 8K monitor – or at least a close approximation. It has a resolution of 7,680 x 2,160, so it’s more like two 4K monitor side by side.
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