The world’s martial arts, only fast and not broken! When you spend more than 10,000 to buy the iPhone 14 Pro Max only supports the slow USB 2.0, as everyone knows, the USB 4 V2 specification has quietly arrived, and the next-generation transmission interface supports a maximum speed of 120Gbps, which is 250 times that of USB2.0…
The USB transmission standard is a major innovation
On October 19, USB-IF released a new USB4 V2.0 standard specification, the new generation of USB4 2.0 interface will support 80Gbps bidirectional maximum transmission rate, as well as asymmetric 120Gbps maximum rate, not only far away from USB2.0 and 3.X, even compared with USB4 1.0, are dominant, in the author’s opinion, even if it is named USB 5 is fine.
USB4 peak rate 40Gbps
What are the benefits of supporting the latest USB4 2.0 standard?
For example, backup mobile phone stored data to the computer, although the computer supports USB3.0 interface, but you use an iPhone or Xiaomi mobile phone, the highest transfer rate will be stuck under the USB 2.0 line, the highest speed is only 480Mbps, the conversion is a peak of 60MB/s (in fact, it can only run to about 45MB/S), then back up 15GB of data, at least 4 minutes and 15 seconds (actually 7 minutes up), and if the computer and mobile phone support the latest USB4 The 2.0 transmission standard only takes 1.5 seconds in theory (converted by 80Gbps, the actual thing is only a few seconds).
With the continuous increase of mobile phone storage space, now 512GB and 1T are almost the standard of high-end flagships, then, enjoying ultra-clear blockbusters on mobile phones is also a pediatric thing, copy a 4K disc of about 40GB from the PC to the mobile phone, if it is a USB2.0 small water pipe, you need to wait at least ten or twenty minutes, and mobile phones that support USB3.1 Gen1, as can be seen in the evaluation video of the digital V@ machine, ran a result of 283MB/s, with 280MB/ s to remember, it is also 6.2 times the actual running score of USB2.0 45MB/s, and it will be copied in more than 3 minutes.
It is conceivable that when in a few years, USB4 2.0 is fully popularized, copying a 40G movie, it is only a matter of seconds, USB2.0 to USB4 2.0 upgrade, no less than bicycle to magnetic levitation, that kind of experience and happiness improvement, will be unprecedented.
In addition, because the new specification optionally supports three channels up to 120Gbps theoretical rate to send and receive data (3Tx+1Rx asymmetric mode), this anti-sky bandwidth is fully enough for the host to drive 8K 85P uncompressed format and 8K 144P (DSC compression format) video signals, and support DP2.0/2.1 of the highest specification UHBR20, that is, high-end displays (4K 240Hz, 2K 480Hz), it can be driven.
And after eating up 120Gbps of bandwidth, it still has 40Gbps of bandwidth remaining, and enthusiast players can connect to a multi-function docking station to achieve USB network cards, network cables, webcams and other full device support, so digital enthusiasts and e-sports players can not hide their excitement, it is understandable.
USB4 2.0 is undoubtedly the next generation of Xeon transmission protocol, even not only mobile phones, PAD, even the next generation of PC, VR and any other smart devices, will see its slow popularization, say late, then fast, in the USB 3.X stage to play a leading role in the technology, Intel, first officially announced the new specification.
Intel implicitly said that the next generation of Thunderbolt technology (Thunderbolt 5) is based on the USB4 2.0 standard specification, and represents the high-level form of the V2 specification, almost fully supports all the technical features of USB4 2.0, such as in addition to the two-way 80Gbps rate, but also supports DisplayPort 2.1 signal transmission, and even can increase the PCIe transmission rate by 200%, making it possible for enthusiast players to connect to an external display.
USB4 2.0 has a series of irreplaceable significant advantages, industry giants have followed is a sure thing, but against the trend, still to the iPhone with Lightning interface mobile phone overlord Apple, also came to make a choice…
Type-C connector as the biggest winner?
In addition to the soaring data transmission rate, USB4 has also brought an increase in charging power, such as super fast charging that supports up to 240W (the current mobile phone industry, the global fast charging record is still above the 200W record created by vivo), and Type-C is just the shape standard of USB connectors, you can understand that USB 4 is a technical specification, and the Type-C connector is its physical hardware, that is, Apple will no longer abandon Lightning and put into USB Type-C embraces, in the technical specifications of fast charging and transmission, will be far away from the Android camp that supports Type-C.
On October 4, the European Parliament overwhelmingly passed a bill that from the end of 2024, all portable smart devices must use the USB Type-C interface, and from 2026, the standard interface of the laptop computer will also become USB Type-C, that is, the unified Type-C interface is almost a dead order, no matter how stubborn Apple is, it is time to bow down.
Some people may ask, whether it is USB IF or Intel, AMD and other giants, why are they vigorously promoting the unification of interfaces, in fact, the truth is not difficult to discover, although it is a technological innovation, but business essence, this is a major event related to the trillion industry chain, you read it right, the small Type-C port, behind the endorsement of countless giants, related to the livelihood of hundreds of millions of people…
USB Type-C compared with Lightning, at least has three advantages of full function, backward compatibility and ultra-high speed, the largest market of USB-Type C interface is concentrated in smart phones, tablets, laptops, vehicles, wearables, home, is the most certain technical route, the most significant linkage effect, the most considerable scale of hardware revolution.
Resources:
USB-IF, Intel, AMD official website, Jihaifengyun Weibo, China Merchants Securities Research Report, etc., part of the picture source network
Post time: Oct-21-2022