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VESA has announced that you DisplayPort Alt Mode 2.0 standard with the future The USB4 standard can be used. This gives USB 4 the ability to use 4 high-speed lane DisplayPort data with up to 77.37 Gbit / s to stream and for example 8K (7,680 x 4,320 pixels) with 10 bits 4: 4: 4 Color depth and up to 60 frames per second without compression or even through 16K Display Stream Compression (DSC) (1.5360 × 8.460 pixels) with 10 bits and up to 60 Hz.
USB-C with DisplayPort Alternate Mode
At first glance, 16K may seem like overkill, but multiple monitors can also be connected in series through a DisplayPort output using the Multi-Stream protocol. In such a case, two 8K / 60Hz displays or three 4K / 90Hz displays could be controlled via DSC via a single USB 4 output in DisplayPort AltMode 2.0 and thus reduce the number of cables on and under the desk. When the connection is used for a USB SuperSpeed data transmission at the same time, the transmission speed in DisplayPort AltMode 2.0 is reduced to 40 Gbps.
Like Thunderbolt 3, USB 4 uses non-rotating USB-C as a plug / socket form and can therefore serve as a monitor connection and power cord and also output DisplayPort signals. The good thing about this development is universality, which is being created by using USB-C for USB 4, as well as Thunderbolt 3 and DisplayPort interfaces. However, the mere physical connection no longer says anything directly about its capabilities, it must first be inferred from its specifications or a corresponding logo.
USB-C ports with DisplayPort logo
VESA expects that the first products using DisplayPort Alt Mode 2.0 will be released next year.
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