Why E-Marker chip with a data line is the fast charge cable?

With the popularity of fast charge USB PD protocol, USB-C to USB-C cable market share rising. This cable has incomparable advantages over traditional cable - Supports USB3.1 data transfer, and current 20V / 5A 100W power transmission.

5A carrying the current USB-C to USB-C cable must be equipped with E-Marker chip, but only 5A current carrying capacity, for the output transmission, the need to distinguish the interface or USB 2.0 or USB 3.1 Gen1 USB 3.1 Gen2, so USB-C to USB-C classification wire will be more. Apple notebook USB 5A is a random wire 2.0 data interface.

Due to this high standard of data lines currently on the market are not many, but there will be a great market space, but Bor company at the end of a 4 coming soon the USB 3.1 Gen2  Type-C cable, we have to look ahead What are the characteristics of this data line.

Wire diameter 4.8MM, high quality of the inner wire. TPE is outside, environmental health material, zinc alloy metal interfaces, is integrally molded, durable. Galvanized copper inner core wire, a transmission rate, and the plurality of shield layers applied against outside interference.

Data line is equipped with E-Marker Chip , why a good data transfer rate line to be equipped with E-Marker  r chip it, we learned from the standard USB-IF association, when the transmission speed of USB-C cable is USB 2.0 when , it is not required with E-marker chip. But when the transfer speed of USB 3.1 Gen1 (5Gbps) or when the USB 3.1 Gen2 (10Gbps), you must use the E-Marker chip, which is USB-C cable not much relationship to power. However, while E-Marker marking chip performance data cable, also the cable power transmission capability flag. 

  So, this Bor cable support USB 3.1 Gen2 transfer rate, and that E-Marker Chip is essential.

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Origin blog.csdn.net/Yetta_y/article/details/89811856