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The apple silicon MAC comes with lightning 3 / USB4 instead of the latest thunderbolt 4

via:cnBeta.COM     time:2020/11/11 12:38:25     readed:1100

At 2 a.m. Beijing time, Apple held a Apple Silicone Mac online press conference. With the use of self-developed ARM M1 chips, we were initially worried about whether this generation of Mac will not have a lightning interface.The two usb-c interfaces are introduced in this paper. It's just that its speed is still at the level of lightning 3 (40Gbps), rather than the latest lightning 4.


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Apple silicon integrated support for thunderbolt 3 / USB4

It should be noted that although lightning 4 supports up to 40 Gb / s as well as lightning 3, it has brought about some significant improvements, such as supporting the docking station with four downlink lightning ports.

Here are the lightning 4 features Intel share:

● doubling the minimum video/data requirements for Lightning 3;

Support 32 Gbps PCIe storage, with a speed of 3000 MB / s;

● support up to four lightning 4 ports of expansion dock;

● supports charging at least one computer port;

Even if the peripheral devices of keyboard and mouse are connected through the lightning docking station, the computer can be awakened from sleep;

● apply direct memory access (DMA) protection based on Intel vt-d to prevent physical DMA attacks.

In addition to the interface specification, Intel also provides design guidance for the new cables of thunderbolt 4 and USB4. Even if the length is increased, it will not affect the data transmission rate of 40 Gb / s.

What's better, thunder 4 uses the same connector design as usb-c, and the cable is backward crossed, compatible with USB4, thunderbolt 3, and other USB standards.

Finally, Apple's M1 MAC today includes a 13 inchMacBookPro / MacBook Air, as well as the updated mac mini, are expected to ship on November 17.

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