Displayport 2.1 DP80
In 2022, VESA released DisplayPort 2.1. Describe the differences between DP2.1 and DP1.4. Let’s start down below.
What is DisplayPort 2.1 (DP2.1)?
Usually, DisplayPort and HDMI ports are visible on the rear of a monitor. The purpose of both digital audio/video connection standards is to provide high-quality signal transmission between computers and compatible devices. However, the earlier iterations of these standards may find it difficult to satisfy consumer requests for higher resolutions and refresh rates. For instance, outdated DisplayPort versions might not support the ultra-high refresh rates or cutting-edge resolutions needed for contemporary gaming and business tasks, even though they are still dependable. 4K, 8K, and dual 4K setups at high refresh rates cannot be supported due to the insufficient bandwidth.
Displayport 2.1 bandwidth
More bandwidth is available with DisplayPort 2.1 to meet the increased demand. In terms of bandwidth, DP2.1 comes in a variety of varieties. With 80Gbps capability, UHBR20 offers the most bandwidth 2.5 times that of DisplayPort 1.4a (HBR3). Four 4K@60Hz, dual 4K@120Hz, 1440P@500Hz, and 4K@240Hz can all be used without DSC.
| Ultra-High Bit Rate | Total Gbps |
| UHBR20 | 80 |
| UHBR13.5 | 54 |
| UHBR10 | 40 |
One of DP2.1’s shortcomings, though, is “The Length of Cable.” The length of the cable is sacrificed in order to increase transmission speeds. It is merely a one-meter cable. A longer cable could have problems like latency or performance degradation. DisplayPort 2.1 usability is thus restricted by this flaw. It is difficult to use a cable that is only one meter long, especially since PC users frequently placed their monitors far from their machines.
DisplayPort 2.1a (DP2.1a)
VESA introduced the newest standard, DP2.1a, at CES 2024. Cable length is increased and bandwidth is enhanced with DP2.1a. DP2.1a resolves the issue with DP2.1. Without sacrificing performance, the DP54 can accommodate cables up to two meters in length. In general, two meters is plenty for use.
How to Pick the Cable For DP2.1a
To effectively utilize DP2.1a’s bandwidth, make sure the graphics card and monitor are DP2.1a compatible and that the cable is VESA-certified DP80(Displayport 2.1 DP80). All of these elements must be combined to get the 80Gbps speed.
For DP2.1a cables, DP80 is a specification that you might not be aware with. Within DP2.1a, there are three primary specifications: DP40, DP54, and DP80(Displayport 2.1 DP80). The bandwidth capacity supported by the cable is indicated by the number that comes after “DP”. The overall bandwidth of DP80 cables, for instance, is 80 Gbps, which is 20 Gbps per lane over 4 lanes (20 Gbps x 4 lanes = 80 Gbps). The smooth operation of multitasking configurations, advanced resolutions, and refresh rates is made possible by this large bandwidth.
| Cables | Total Bandwidth |
| DP40 (UHBR10) | 40Gbps |
| DP54 (UHBR13.5) | 54Gbps |
| DP80 (UHBR20 | 80Gbps |
Displayport 2.1 monitors
MSI DP2.1a Gaming Monitors – MPG 272URX QD-OLED and MPG 322URX QD-OLED
MPG 322URX is 32 inches and 272URX QD-OLED 4K, 240 Hz. Nice 4K resolution and 240Hz refresh rates on both monitors. DP2.1a connectivity lets them deliver 4K@240Hz without DSC. These displays use QD-OLED technology, which allows for a very quick reaction time of 0.03 ms.
By integrating the most recent DP2.1a standard with QD-OLED technology, MSI guarantees that these monitors are not only ready for present demands but also ready to satisfy those of both professional and gaming customers in the future.
In conclusion
Although there are many similarities between DisplayPort 2.1 and DP2.1a, the latter adds improvements that improve overall performance, signal reliability, and battery efficiency, especially in portable and gaming devices. When purchasing new screens, cables, and accessories, being aware of these variations will help you make an informed choice.
