It is understood that in order to improve safety, in the USB PD3.1 specification, power output of more than 100W is not only required to use EPR cable, but also need to be identified through specific information between the cable and the charger, as well as between the device and

In May 2021, the USB-IF Association launched the USB Type-Ch cable and interface standard v2.1 version, which updated the USB PD3.1 fast charging standard, increased the charging power to 240W, and added three new expansion voltage gears, 28V, 36V, and 48V. At the same time, the specifications of the cable have also changed, with two specifications: 20V ordinary cable and 50V EPR cable.

It is understood that in order to improve security, in the USB PD3.1 specification, power output exceeding 100W is not only an EPR cable, but also a specific information is needed between the cable and the charger, as well as between the device and the cable, and both of which are indispensable.

With the release of the 16-inch MacBook Pro 2021, the world's first USB PD3.1 standard 140W fast charging charger and the first USB PD3.1 fast charging deception cable have also been officially mass-produced. Third-party fast charging accessories manufacturers are taking action, and high-power charger and charging cable are under intense research and development. Recently, the charging head network obtained a USB Type-C 2.1 fast charging cable from Hehong Industry. As one of the rare new standard cables in the industry, what is the internal structure and materials of this product? Let’s explain the secrets for you below.

1. Hehong Industrial USB Type-C 2.1 fast charging cable appearance

and Hong Industrial USB Type-C 2.1 data cables use gray cables, with both ends of white terminals.

1 Two USB-CHighlights, made of white TPE material, integrated injection molding, and no silkscreen information on the whole body; the connection between the cable and the interface is extended and reinforced to play a bending effect.

The length of the entire cable is about 1 meter.

The cable part uses a fishing wire braided coat, and the inner TPE material skin is vaguely visible.

USB-C interface adopts a 24Pin design.

Use ChargerLAB POWER-Z KM002C to read the E-Marker chip information inside the cable. The cable type is a passive data cable, the chip supplier is Yichong (Easy-Crush Semiconductor), with a length of 1 meter, a power specification of 50V5A (EPR), and the data is USB2.0.

uses Hehong Industrial USB Type-C 2.1 fast charging cable with Apple original 140W charger to charge the 16-inch MacBook Pro 2021, showing the charger voltage is 20.43V, current is 4.72A, charging power is about 96.37W, and 100W PD fast charging mode is turned on.

2. Hehong Industrial USBType-C 2.1 fast charging cable disassembly

cut it along both sides of the shell of the USB-C connector.

has a transparent hard rubber sealing layer inside, and you can see the red PCB board and the wire core solder joints inside.

The inner PCB board has a chip and positive and negative wire solder joints.

Clean the hard glue, and the E-Marker chip can easily flush the semiconductor.

The red cable is a VBUS cable, and the cable shield is GND.

The back of the PCB board has a row of soldered signal cables.

The other end uses a green PCB board, and the pads of the E-Marker chip are reserved, and the GND wires are soldered.

are several color signal lines and red VBUS lines on the back.

Then divide the cable into two, and you can see the TPE skin inside.

is a shielding layer and a multi-strand core inside the TPE skin.

shielding layer also adopts the compilation process.

There is also a layer of aluminum foil under the shielding layer. After peeling it, you can see multiple wire cores of different colors inside. There are 7 wire cores and a tensile wire inside

. Among them, the red wire core is the thickest and is used for power transmission. The four cores of yellow, green, blue and white are all wrapped in insulating outer skin, and the other three are bare wires.

wire part disassembly list.

mesh shield layer close-up.

Aluminum foil shielding layer wrapped in the wire core.

The red cable is thicker and has tensile fibers inside.

There are also tensile fibers in the white wire core.

blue wire core.

green wire core.

yellow wire core.

The other three bare wire cores. The

and Hongzhen USB Type-C2.1 data cables have all been disassembled.

Charging Head Network Summary

and Hongzhen launched this USB-C to USB-C cable is one of the few fast charging cables in the industry that meet the USB Type-C 2.1 standard. In terms of performance, it not only supports USB 2.0 data transmission, but also supports 50V 5A power transmission. It is an EPR-specific fast charging cable. In other words, it can provide 240W charging capacity for USB PD3.1 devices with a USB PD3.1 charger. However, since there is no USB PD3.1 device based on the USB-C interface, the specific performance has not been tested.

charging head network learned through disassembly that this cable is developed based on the E-Marker chip of Easy-Chong Semiconductor, with an E-Marker chip built-in, which is a passive type cable. The two USB-C interfaces adopt a high-spec 24Pin design. The outer layer of the wire is a fish wire braided mesh, which is smooth and irritable. The interior uses shielding mesh and aluminum foil to form a multi-layer shielding effect. The overall material is solid.