The first apple silicon chip M1 used in the new MAC device realizes the first customized master control supporting USB4 and thunderbolt 3, and provides the world’s first system conforming to USB4 specification. It’s worth noting that Apple was the first to market Intel’s 11th generation tiger Lake processor for laptops. < / P > < p > although compared with Apple’s customized GPU, neural engine or unified memory architecture on M1 chip, the support for USB4 is not a big change. But it’s worth noting that Apple has been able to quickly implement and deliver new emerging standards on its custom apple chips, which is one of Apple’s strengths against windows PC and Android. < / P > < p > USB4 also represents the transition of Intel’s proprietary thunderbolt protocol from a paid licensing solution that requires Intel controller chips to an open licensing standard controlled by USB standards bodies. In fact, most of the technical improvements to USB4 are actually copies of the thunderbolt 3 high-speed connectivity feature, which is now available from a non-profit organization that promotes USB as an industry standard. One of the important reasons why Apple can provide thunderbolt 3 and USB4 on M1 chip is that Intel has gradually opened up the technology related to USB4. And Apple’s M1 was introduced before Intel finished supporting the new standard chip, which is a bit surprising. < / P > < p > thunderbolt was originally developed by Intel in collaboration with apple and was originally named “light peak”. It was originally intended to be a modern optical alternative to FireWire, a standard developed by apple in the early 1990s, but failed to gain widespread adoption in the PC industry. < p > < p > but ten years later, Intel’s thunderbolt seems to have suffered the same fate as FireWire: Apple enthusiastically adopted thunderbolt on its MAC, but its popularity on general purpose PCs was limited, and its desire to promote the latest technology was reduced. < p > < p > last year, Intel announced plans with apple, Microsoft, Hewlett Packard, and chipmaker Renesas, Italian semiconductor and Texas Instruments (TI) to define a unified USB4 standard. It will provide the same ultra-high speed 40gpbs bandwidth as Thunderbolt 3, and improve support for USB 3.2, DisplayPort and PCIe protocols over usb-c cables. Global Tech